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Author Deylgat, E.; Chen, E.; Fischetti, M.V.; Sorée, B.; Vandenberghe, W.G.
  Title Image-force barrier lowering in top- and side-contacted two-dimensional materials Type A1 Journal article
  Year 2022 Publication Solid state electronics Abbreviated Journal Solid State Electron
  Volume 198 Issue Pages 108458-4
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We compare the image-force barrier lowering (IFBL) and calculate the resulting contact resistance for four different metal-dielectric-two-dimensional (2D) material configurations. We analyze edge contacts in three different geometries (a homogeneous dielectric throughout, including the 2D layer; a homogeneous dielectric surrounding the 2D layer, both ungated and back gated) and also a top-contact assuming a homogeneous dielectric. The image potential energy of each configuration is determined and added to the Schottky energy barrier which is calculated assuming a textbook Schottky potential. For each configuration, the contact resistivity is calculated using the WKB approximation and the effective mass approximation using either SiO2 or HfO2 as the surrounding dielectric. We obtain the lowest contact resistance of 1 k Omega mu m by n-type doping an edge contacted transition metal-dichalcogenide (TMD) monolayer, sandwiched between SiO2 dielectric, with similar to 1012 cm-2 donor atoms. When this optimal configuration is used, the contact resistance is lowered by a factor of 50 compared to the situation when the IFBL is not considered.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000876289800003 Publication Date 2022-09-22
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0038-1101 ISBN Additional Links UA library record; WoS full record
  Impact Factor 1.7 Times cited Open Access Not_Open_Access
  Notes Approved (down) Most recent IF: 1.7
  Call Number UA @ admin @ c:irua:191556 Serial 7312
Permanent link to this record
 

 
Author Bercx, M.; Mayda, S.; Depla, D.; Partoens, B.; Lamoen, D.
  Title Plasmonic effects in the neutralization of slow ions at a metallic surface Type A1 Journal Article
  Year 2023 Publication Contributions to Plasma Physics Abbreviated Journal Contrib. Plasma Phys
  Volume Issue Pages
  Keywords A1 Journal Article; Electron Microscopy for Materials Science (EMAT) ;
  Abstract Secondary electron emission is an important process that plays a significant role in several plasma‐related applications. As measuring the secondary electron yield experimentally is very challenging, quantitative modelling of this process to obtain reliable yield data is critical as input for higher‐scale simulations. Here, we build upon our previous work combining density functional theory calculations with a model originally developed by Hagstrum to extend its application to metallic surfaces. As plasmonic effects play a much more important role in the secondary electron emission mechanism for metals, we introduce an approach based on Poisson point processes to include both surface and bulk plasmon excitations to the process. The resulting model is able to reproduce the yield spectra of several available experimental results quite well but requires the introduction of global fitting parameters, which describe the strength of the plasmon interactions. Finally, we use an in‐house developed workflow to calculate the electron yield for a list of elemental surfaces spanning the periodic table to produce an extensive data set for the community and compare our results with more simplified approaches from the literature.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 001067651300001 Publication Date 2023-09-16
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0863-1042 ISBN Additional Links UA library record; WoS full record
  Impact Factor 1.6 Times cited Open Access Not_Open_Access
  Notes We acknowledge the financial support of FWO-Vlaanderen through project G.0216.14N. The computational resources and services used in this work were provided by the VSC (Flemish Supercomputer Center) and the HPC infrastructure of the University of Antwerp (CalcUA), both funded by the FWO-Vlaanderen and the Flemish Government-department EWI. Approved (down) Most recent IF: 1.6; 2023 IF: 1.44
  Call Number EMAT @ emat @c:irua:200330 Serial 8962
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Author Bafekry, A.; Stampfl, C.; Peeters, F.M.
  Title The electronic, optical, and thermoelectric properties of monolayer PbTe and the tunability of the electronic structure by external fields and defects Type A1 Journal article
  Year 2020 Publication Physica Status Solidi B-Basic Solid State Physics Abbreviated Journal Phys Status Solidi B
  Volume Issue Pages 2000182-12
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract First‐principles calculations, within the framework of density functional theory, are used to investigate the structural, electronic, optical, and thermoelectric properties of monolayer PbTe. The effect of layer thickness, electric field, strain, and vacancy defects on the electronic and magnetic properties is systematically studied. The results show that the bandgap decreases as the layer thickness increases from monolayer to bulk. With application of an electric field on bilayer PbTe, the bandgap decreases from 70 meV (0.2 V Å⁻¹) to 50 meV (1 V Å⁻¹) when including spin–orbit coupling (SOC). Application of uniaxial strain induces a direct‐to‐indirect bandgap transition for strain greater than +6%. In addition, the bandgap decreases under compressive biaxial strain (with SOC). The effect of vacancy defects on the electronic properties of PbTe is also investigated. Such vacancy defects turn PbTe into a ferromagnetic metal (single vacancy Pb) with a magnetic moment of 1.3 μB, and into an indirect semiconductor with bandgap of 1.2 eV (single Te vacancy) and 1.5 eV (double Pb + Te vacancy). In addition, with change of the Te vacancy concentration, a bandgap of 0.38 eV (5.55%), 0.43 eV (8.33%), and 0.46 eV (11.11%) is predicted.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000527679200001 Publication Date 2020-04-23
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.6 Times cited 40 Open Access
  Notes ; This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2017R1A2B2011989). In addition, this work was supported by the FLAG-ERA project 2DTRANS TMD and the Flemish Science Foundation (FWO-Vl). The authors are thankful for comments by Mohan Verma from the Computational Nanoionics Research Lab, Department of Applied Physics, Bhilai, India and to Francesco Buonocore from ENEA, Casaccia Research Centre, Rome, Italy. ; Approved (down) Most recent IF: 1.6; 2020 IF: 1.674
  Call Number UA @ admin @ c:irua:168730 Serial 6502
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Author Bafekry, A.; Van Nguyen, C.; Stampfl, C.; Akgenc, B.; Ghergherehchi, M.
  Title Oxygen vacancies in the single layer of Ti₂CO₂ MXene: effects of gating voltage, mechanical strain, and atomic impurities Type A1 Journal article
  Year 2020 Publication Physica Status Solidi B-Basic Solid State Physics Abbreviated Journal Phys Status Solidi B
  Volume Issue Pages 2000343-2000349
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract Herein, using first-principles calculations the structural and electronic properties of the Ti(2)CO(2)MXene monolayer with and without oxygen vacancies are systematically investigated with different defect concentrations and patterns, including partial, linear, local, and hexagonal types. The Ti(2)CO(2)monolayer is found to be a semiconductor with a bandgap of 0.35 eV. The introduction of oxygen vacancies tends to increase the bandgap and leads to electronic phase transitions from nonmagnetic semiconductors to half-metals. Moreover, the semiconducting characteristic of O-vacancy Ti(2)CO(2)can be adjusted via electric fields, strain, and F-atom substitution. In particular, an electric field can be used to alter the nonmagnetic semiconductor of O-vacancy Ti(2)CO(2)into a magnetic one or into a half-metal, whereas the electronic phase transition from a semiconductor to metal can be achieved by applying strain and F-atom substitution. The results provide a useful guide for practical applications of O-vacancy Ti(2)CO(2)monolayers in nanoelectronic and spinstronic nanodevices.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000571060800001 Publication Date 2020-09-04
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.6 Times cited Open Access
  Notes ; This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (NRF-2017R1A2B2011989). ; Approved (down) Most recent IF: 1.6; 2020 IF: 1.674
  Call Number UA @ admin @ c:irua:171948 Serial 6576
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Author Kukhlevsky, S.V.; Mechler, M.; Samek, O.; Janssens, K.
  Title Analytical model of the enhanced light transmission through subwavelength metal slits: Green's function formalism versus Rayleigh's expansion Type A1 Journal article
  Year 2006 Publication Applied physics B : lasers and optics Abbreviated Journal Appl Phys B-Lasers O
  Volume 84 Issue 1/2 Pages 19-24
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000238828700004 Publication Date 2006-05-30
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0946-2171 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.696 Times cited 7 Open Access
  Notes Approved (down) Most recent IF: 1.696; 2006 IF: 2.023
  Call Number UA @ admin @ c:irua:59635 Serial 5472
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Author Bogaerts, A.; Grozeva, M.
  Title Effect of helium/argon gas ratio in a He-Ar-Cu+ IR hollow-cathode discharge laser : modeling study and comparison with experiments Type A1 Journal article
  Year 2003 Publication Applied physics B : lasers and optics Abbreviated Journal Appl Phys B-Lasers O
  Volume 76 Issue 3 Pages 299-306
  Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
  Abstract The He-Ar-Cu+ IR laser operates in a hollow-cathode discharge, typically in a mixture of helium with a few-% Ar. The population inversion of the Cu+ ion levels, responsible for laser action, is attributed to asymmetric charge transfer between He+ ions and sputtered Cu atoms. The Ar gas is added to promote sputtering of the Cu cathode. In this paper, a hybrid modeling network consisting of several different models for the various plasma species present in a He-Ar-Cu hollow-cathode discharge is applied to investigate the effect of Ar concentration in the gas mixture on the discharge behavior, and to find the optimum He/Ar gas ratio for laser operation. It is found that the densities of electrons, Ar+ ions, Ar-m* metastable atoms, sputtered Cu atoms and Cu+ ions increase upon the addition of more Ar gas, whereas the densities of He+ ions, He-2(+) ions and He-m* metastable atoms drop considerably. The product of the calculated Cu atom and He+ ion densities, which determines the production rate of the upper laser levels, and hence probably also the laser output power, is found to reach a maximum around 1-5% Ar addition. This calculation result is compared to experimental measurements, and reasonable agreement has been reached.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000182758000017 Publication Date 2004-03-19
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0946-2171;1432-0649; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.696 Times cited 6 Open Access
  Notes Approved (down) Most recent IF: 1.696; 2003 IF: 2.012
  Call Number UA @ lucian @ c:irua:104125 Serial 812
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Author Bogaerts, A.; Grozeva, M.
  Title Axial non-uniformity of longitudinal hollow cathode discharges for laser applications: numerical modeling and comparison with experiments Type A1 Journal article
  Year 2002 Publication Applied physics: B: photo-physics and laser chemistry Abbreviated Journal Appl Phys B-Lasers O
  Volume 75 Issue Pages 731-738
  Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000180587100019 Publication Date 2004-03-19
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0946-2171;1432-0649; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.696 Times cited 8 Open Access
  Notes Approved (down) Most recent IF: 1.696; 2002 IF: 2.080
  Call Number UA @ lucian @ c:irua:44007 Serial 211
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Author Yang, Z.; Schryvers, D.; Roels, F.; d' Haese, P.C.; de Broe, M.E.
  Title Demonstration of lanthanum in liver cells by energy-dispersive X-ray spectroscopy, electron energy loss spectroscopy and high-resolution transmission electron microscopy Type A1 Journal article
  Year 2006 Publication Journal of microscopy Abbreviated Journal J Microsc-Oxford
  Volume 223 Issue 2 Pages 133-139
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Pathophysiology
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Oxford Editor
  Language Wos 000239702700006 Publication Date 2006-08-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-2720;1365-2818; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.692 Times cited 29 Open Access
  Notes Approved (down) Most recent IF: 1.692; 2006 IF: 1.947
  Call Number UA @ lucian @ c:irua:59109 Serial 633
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Author Mehta, A.N.; Zhang, H.; Dabral, A.; Richard, O.; Favia, P.; Bender, H.; Delabie, A.; Caymax, M.; Houssa, M.; Pourtois, G.; Vandervorst, W.
  Title Structural characterization of SnS crystals formed by chemical vapour deposition Type A1 Journal article
  Year 2017 Publication Journal of microscopy T2 – 20th International Conference on Microscopy of Semiconducting Materials, (MSM), APR 09-13, 2017, Univ Oxford, Univ Oxford, Oxford, ENGLAND Abbreviated Journal J Microsc-Oxford
  Volume 268 Issue 3 Pages 276-287
  Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
  Abstract <script type='text/javascript'>document.write(unpmarked('The crystal and defect structure of SnS crystals grown using chemical vapour deposition for application in electronic devices are investigated. The structural analysis shows the presence of two distinct crystal morphologies, that is thin flakes with lateral sizes up to 50 m and nanometer scale thickness, and much thicker but smaller crystallites. Both show similar Raman response associated with SnS. The structural analysis with transmission electron microscopy shows that the flakes are single crystals of -SnS with [010] normal to the substrate. Parallel with the surface of the flakes, lamellae with varying thickness of a new SnS phase are observed. High-resolution transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), first-principles simulations (DFT) and nanobeam diffraction (NBD) techniques are employed to characterise this phase in detail. DFT results suggest that the phase is a strain stabilised \u0027 one grown epitaxially on the -SnS crystals. TEM analysis shows that the crystallites are also -SnS with generally the [010] direction orthogonal to the substrate. Contrary to the flakes the crystallites consist of two to four grains which are tilted up to 15 degrees relative to the substrate. The various grain boundary structures and twin relations are discussed. Under high-dose electron irradiation, the SnS structure is reduced and -Sn formed. It is shown that this damage only occurs for SnS in direct contact with SiO2. Lay description SnS is a p-type semiconductor, which has attracted significant interest for electronic devices due to its unique properties, low-toxicity and abundance of Sn in nature. Although in the past it has been most extensively studied as the absorber material in solar cells, it has recently garnered interest for application as a p-type two-dimensional semiconductor in nanoelectronic devices due to its anisotropic layered structure similar to the better known phosphorene. Tin sulphide can take the form of several phases and the electronic properties of the material depend strongly on its crystal structure. It is therefore crucial to study the crystal structure of the material in order to predict the electronic properties and gain insight into the growth mechanism. In this work, SnS crystals deposited using a chemical vapour deposition technique are investigated extensively for their crystal and defect structure using transmission electron microscopy (TEM) and related techniques. We find the presence of two distinct crystal morphologies, that is thin flakes with lateral sizes up to 50 m and nm scale thickness, and much thicker but smaller crystallites. The flakes are single crystals of -SnS and contain lamellae with varying thickness of a different phase which appear to be -SnS at first glance. High-resolution scanning transmission electron microscopy is used to characterise these lamellae where the annular bright field (ABF) mode better reveals the position of the sulphur columns. The sulphur columns in the lamellae are found to be shifted relative to the -SnS structure which indicates the formation of a new phase which is a distorted version of the phase which we tentatively refer to as \u0027-SnS. Simulations based on density functional theory (DFT) are used to model the interface and a similar shift of sulphur columns in the -SnS layer is observed which takes place as a result of strong interaction at the interface between the two phases resulting in strain transfer. Nanobeam electron diffraction (NBD) is used to map the lattice mismatch in the thickness of the flakes which reveals good in-plane matching and some expansion out-of-plane in the lamellae. Contrary to the flakes the crystallites are made solely of -SnS and consist of two to four grains which are tilted up to 15 degrees relative to the substrate. The various grain boundary structures and twin relations are discussed. At high electron doses, SnS is reduced to -Sn, however the damage occurs only for SnS in direct contact with SiO2.'));
  Address
  Corporate Author Thesis
  Publisher Wiley Place of Publication Hoboken Editor
  Language Wos 000415900300009 Publication Date 2017-09-28
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-2720 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.692 Times cited 2 Open Access Not_Open_Access
  Notes Approved (down) Most recent IF: 1.692
  Call Number UA @ lucian @ c:irua:147692 Serial 4898
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Author Shenderova, O.; Vargas, A.; Turner, S.; Ivanov, D.M.; Ivanov, M.G.
  Title Nanodiamond-based nanolubricants : investigation of friction surfaces Type A1 Journal article
  Year 2014 Publication Tribology transactions Abbreviated Journal Tribol T
  Volume 57 Issue 6 Pages 1051-1057
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract Synergistic compositions of detonation nanodiamond (DND) particles with polytetrafluoroethylene and molybdenum dialkyldithiophosphate were used in ring-on-ring, four-ball, and block-on-ring tests as an additive to polyalphaolefins and engine oils. Modest to significant reductions in the friction coefficients, wear, or both were observed. In the wear scars produced in the block-on-ring tests, the friction surfaces were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and profilometry. Significant polishing effects of the friction surfaces in lubricants containing DND were revealed in SEM observations and roughness measurements. The roughness of the scar surfaces produced in the presence of DND additives was about 35% lower than the roughness of the scars observed in pure oil experiments.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Park Ridge, Ill. Editor
  Language Wos 000345317900009 Publication Date 2014-06-26
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1040-2004;1547-397X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.685 Times cited 23 Open Access
  Notes Approved (down) Most recent IF: 1.685; 2014 IF: 1.349
  Call Number UA @ lucian @ c:irua:122161 Serial 2252
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Author Kang, T.-Y.; Kwon, J.-S.; Kumar, N.; Choi, E.; Kim, K.-M.
  Title Effects of a Non-Thermal Atmospheric Pressure Plasma Jet with Different Gas Sources and Modes of Treatment on the Fate of Human Mesenchymal Stem Cells Type A1 Journal article
  Year 2019 Publication Applied Sciences Abbreviated Journal Appl Sci-Basel
  Volume 9 Issue 22 Pages 4819
  Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
  Abstract Despite numerous attempts to use human mesenchymal stem cells (hMSCs) in the field of tissue engineering, the control of their differentiation remains challenging. Here, we investigated possible applications of a non-thermal atmospheric pressure plasma jet (NTAPPJ) to control the differentiation of hMSCs. An air- or nitrogen-based NTAPPJ was applied to hMSCs in culture media, either directly or by media treatment in which the cells were plated after the medium was exposed to the NTAPPJ. The durations of exposure were 1, 2, and 4 min, and the control was not exposed to the NTAPPJ. The initial attachment of the cells was assessed by a water-soluble tetrazolium assay, and the gene expression in the cells was assessed through reverse-transcription polymerase chain reaction and immunofluorescence staining. The results showed that the gene expression in the hMSCs was generally increased by the NTAPPJ exposure, but the enhancement was dependent on the conditions of the exposure, such as the source of the gas and the treatment method used. These results were attributed to the chemicals in the extracellular environment and the reactive oxygen species generated by the plasma. Hence, it was concluded that by applying the best conditions for the NTAPPJ exposure of hMSCs, the control of hMSC differentiation was possible, and therefore, exposure to an NTAPPJ is a promising method for tissue engineering.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000502570800096 Publication Date 2019-11-11
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 2076-3417 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.679 Times cited Open Access
  Notes The plasma source was kindly provided by the Plasma Bioscience Research Center, Kwangwoon University. Approved (down) Most recent IF: 1.679
  Call Number PLASMANT @ plasmant @c:irua:164893 Serial 5435
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Author Michel, K.H.; Costamagna; Peeters, F.M.
  Title Theory of thermal expansion in 2D crystals Type A1 Journal article
  Year 2015 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 252 Issue 252 Pages 2433-2437
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract The thermal expansion alpha(T) in layered crystals is of fundamental and technological interest. As suggested by I. M. Lifshitz in 1952, in thin solid films (crystalline membranes) a negative contribution to alpha(T) is due to anharmonic couplings between in-plane stretching modes and out-of-plane bending (flexural modes). Genuine in-plane anharmonicities give a positive contribution to alpha(T). The competition between these two effects can lead to a change of sign (crossover) from a negative value of alpha(T) in a temperature (T) range T <= T-alpha to a positive value of alpha(T) for T > T-alpha in layered crystals. Here, we present an analytical lattice dynamical theory of these phenomena for a two-dimensional (2D) hexagonal crystal. We start from a Hamiltonian that comprises anharmonic terms of third and fourth order in the lattice displacements. The in-plane and out-of-plane contributions to the thermal expansion are studied as functions of T for crystals of different sizes. Besides, renormalization of the flexural mode frequencies plays a crucial role in determining the crossover temperature T-alpha. Numerical examples are given for graphene where the anharmonic couplings are determined from experiments. The theory is applicable to other layer crystals wherever the anharmonic couplings are known. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000364690400014 Publication Date 2015-08-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 21 Open Access
  Notes ; We thank B. Verberck, D. Lamoen, and A. Dobry for useful comments. We acknowledge funding from the FWO (Belgium)-MINCyT (Argentina) collaborative research project. This work is supported by the Euro GRAPHENE project CONGRAN. ; Approved (down) Most recent IF: 1.674; 2015 IF: 1.489
  Call Number UA @ lucian @ c:irua:130281 Serial 4264
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Author Matulis, A.; Zarenia, M.; Peeters, F.M.
  Title Wave fronts and packets in 1D models of different meta-materials : graphene, left-handed media and transmission line Type A1 Journal article
  Year 2015 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 252 Issue 252 Pages 2330-2338
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract A comparative study is made of the propagation of wave packets and fronts in three different meta-media, i.e. graphene, left-handed media (LHM) and transmission lines, using one-dimensional models. It is shown that a potential step in graphene influences only the frequency of the electronic wave, i.e., the particular spectrum branch (electron or hole) to which the wave belongs to, while the envelop function (the wave front or packet form) remains unchanged. Although the model for a vacuum and LHM interface is similar to that of the potential step in graphene, the solutions are quite different due to differences in the chirality of the waves. Comparing the propagation of wave fronts and packets in a standard transmission line and its meta-analog we demonstrate that the propagating packets in the meta-line are much more deformed as compared to the standard one, including broadening, asymmetry and even the appearance of fast moving precursors. This influence is seen not only in the case of packets with steep fronts but in soft Gaussian packets as well.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000362722300025 Publication Date 2015-07-20
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 1 Open Access
  Notes ; This work was financially supported by the Flemish Science Foundation (FWO-Vl), the Methusalem foundation of the Flemish government, and the European Social Fund under the Global Grant Measure (Grant No. VP1-3.1-SMM-07-K-02-046). ; Approved (down) Most recent IF: 1.674; 2015 IF: 1.489
  Call Number UA @ lucian @ c:irua:128776 Serial 4277
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Author Xiao, Y.M.; Xu, W.; Zhang, Y.Y.; Peeters, F.M.
  Title Optoelectronic properties of ABC-stacked trilayer graphene Type A1 Journal article
  Year 2013 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 250 Issue 1 Pages 86-94
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We present a theoretical study on the optoelectronic properties of ABC-stacked trilayer graphene (TLG). The optical conductance and light transmittance are evaluated through using the energy-balance equation derived from the Boltzmann equation for an air/graphene/dielectric-wafer system in the presence of linearly polarized radiation field. The results obtained from two band structure models are examined and compared. For short wavelength radiation, the universal optical conductance sigma(0) = 3e(2)/(4h) can be obtained. Importantly, there exists an optical absorption window in the radiation wavelength range 10-200 mu m, which is induced by different transition energies required for inter- and intra-band optical absorption channels. As a result, we find that the position and width of this window depend sensitively on temperature and carrier density of the system, especially the lower frequency edge. There is a small characteristic absorption peak at about 82 mu m where the largest interband transition states exist in the ABC-stacked TLG model, in contrast to the relatively smooth curves in a simplified model. These theoretical results indicate that TLG has some interesting and important physical properties which can be utilized to realize infrared or THz optoelectronic devices.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000313347500011 Publication Date 2012-08-08
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 6 Open Access
  Notes ; This work was supported by the National Natural Science Foundation of China (grant no. 10974206), Department of Science and Technology of Yunnan Province, and by the Chinese Academy of Sciences. One of us (F.M.P.) was a Specially Appointed Foreign Professor of the Chinese Academy of Sciences. ; Approved (down) Most recent IF: 1.674; 2013 IF: 1.605
  Call Number UA @ lucian @ c:irua:110109 Serial 2495
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Author Krugel, A.; Axt, V.M.; Kuhn, T.; Vagov, A.; Peeters, F.M.
  Title Coherent nonlinear optical response of excitons and biexcitons in quantum dots coupled to phonons Type A1 Journal article
  Year 2006 Publication Physica status solidi B – basic solid state physics Abbreviated Journal Phys Status Solidi B
  Volume 243 Issue 10 Pages 2241-2246
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000239932300006 Publication Date 2006-08-15
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 1 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2006 IF: 0.967
  Call Number UA @ lucian @ c:irua:60892 Serial 380
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Author Vagov, A.; Croitoru, M.D.; Axt, V.M.; Kuhn, T.; Peeters, F.M.
  Title High pulse area undamping of Rabi oscillations in quantum dots coupled to phonons Type A1 Journal article
  Year 2006 Publication Physica status solidi B – Basic solid state physics Abbreviated Journal Phys Status Solidi B
  Volume 243 Issue 10 Pages 2233-2240
  Keywords A1 Journal article; Condensed Matter Theory (CMT); Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000239932300005 Publication Date 2006-07-27
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 16 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2006 IF: 0.967
  Call Number UA @ lucian @ c:irua:60891 Serial 1440
Permanent link to this record
 

 
Author Papp, G.; Borza, S.; Peeters, F.M.
  Title Spin transport through a ZnSe-based diluted magnetic semiconductor resonant tunneling structure in the presence of electric and magnetic fields Type A1 Journal article
  Year 2006 Publication Physica status solidi B: basic solid state physics Abbreviated Journal Phys Status Solidi B
  Volume 243 Issue 8 Pages 1956-1962
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000239100800035 Publication Date 2006-06-01
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 10 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2006 IF: 0.967
  Call Number UA @ lucian @ c:irua:60563 Serial 3103
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Author Papp, G.; Peeters, F.M.
  Title Comment on “Tunable spin-injection and magnetoconductance in a novel 2DEG-ferromagnet structure” [phys. stat. sol. (b) 235, No. 1, 157-161 (2003)] Type A1 Journal article
  Year 2004 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 241 Issue 1 Pages 222-223
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We point out that the predicted strong spin-injection effect by Jiang and Jalil [phys. stat. sol. (b) 235, 157 (2003)] for a double magnetic barrier structure is based on a wrong calculation of the transmission probability. We corrected the result and found no significant spin-injection.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000188585200028 Publication Date 2003-12-29
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 11 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2004 IF: 0.982
  Call Number UA @ lucian @ c:irua:103257 Serial 413
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Author Pokatilov, E.P.; Croitoru, M.D.; Fomin, V.M.; Devreese, J.T.
  Title Bipolaron stability in an ellipsoidal potential well Type A1 Journal article
  Year 2003 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 237 Issue Pages 244-251
  Keywords A1 Journal article; Theory of quantum systems and complex systems; Condensed Matter Theory (CMT); Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000182801800022 Publication Date 2003-04-24
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 7 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2003 IF: 0.987
  Call Number UA @ lucian @ c:irua:44283 Serial 243
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Author van Rossum, M.; Schoenmaker, W.; Magnus, W.; de Meyer, K.; Croitoru, M.D.; Gladilin, V.N.; Fomin, V.M.; Devreese, J.T.
  Title Moore's law: new playground for quantum physics Type A1 Journal article
  Year 2003 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 237 Issue Pages 426-432
  Keywords A1 Journal article; Theory of quantum systems and complex systems; Condensed Matter Theory (CMT); Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000182801800041 Publication Date 2003-04-24
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 2 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2003 IF: 0.987
  Call Number UA @ lucian @ c:irua:44284 Serial 2202
Permanent link to this record
 

 
Author Riva, C.; Peeters, F.M.; Varga, K.; Schweigert, V.A.
  Title Correlation energy and configuration of biexcitons in quantum wells Type A1 Journal article
  Year 2002 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 234 Issue 1 Pages 50-57
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract A calculation of the energy of a biexciton in a GaAs/AlGaAs quantum wen is presented. We compare the results obtained using two different techniques. We discuss the dependence of the biexciton correlation energy and binding energy on the electron/hole mass ratio and on the well width. The structure of the biexciton is also investigated.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000179600900009 Publication Date 2002-11-07
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 6 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2002 IF: 0.930
  Call Number UA @ lucian @ c:irua:99604 Serial 526
Permanent link to this record
 

 
Author Karczewski, G.; Wojtowicz, T.; Wang, Y.-J.; Wu, X.; Peeters, F.M.
  Title Electron effective mass and resonant polaron effect in CdTe/CdMgTe quantum wells Type A1 Journal article
  Year 2002 Publication Physica status solidi: B: basic research T2 – 10th International Conference on II-VI Compounds, SEP 09-14, 2001, BREMEN, GERMANY Abbreviated Journal Phys Status Solidi B
  Volume 229 Issue 1 Pages 597-600
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract Cyclotron resonance in CdTe/CdMgTe quantum wells (QWs) was studied. Due to the polaron effect the zero-field effective mass is strongly influenced by the QW width. The experimental data have been described theoretically by taking into account electron-phonon coupling and the nonparabolicity of the conduction band. The subband structure was calculated self-consistently. The best fit was obtained for an electron-phonon coupling constant alpha = 0.3 and bare electron mass of m(b) = 0.092m(0).
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000173806600118 Publication Date 2002-08-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 10 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2002 IF: 0.930
  Call Number UA @ lucian @ c:irua:102838 Serial 925
Permanent link to this record
 

 
Author van Daele, B.; Van Tendeloo, G.; Germain, M.; Leys, M.; Bougrioua, Z.; Moerman, I.
  Title Relation between microstructure and 2DEG properties of AlGaN/GaN structures Type A1 Journal article
  Year 2002 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 234 Issue 3 Pages 830-834
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000180038200031 Publication Date 2002-12-03
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 1 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2002 IF: 0.930
  Call Number UA @ lucian @ c:irua:54847 Serial 2857
Permanent link to this record
 

 
Author Janssens, K.L.; Peeters, F.M.; Schweigert, V.A.
  Title Magnetic field dependence of the properties of excitons confined in a quantum disk Type A1 Journal article
  Year 2001 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 224 Issue Pages 763-768
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000168432100030 Publication Date 2004-11-23
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 1 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2001 IF: 0.873
  Call Number UA @ lucian @ c:irua:37311 Serial 1872
Permanent link to this record
 

 
Author Riva, C.; Peeters, F.M.; Varga, K.
  Title Positive and negative charged excitons in a semiconductor quantum well Type A1 Journal article
  Year 2001 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 227 Issue Pages 397-404
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000171986600015 Publication Date 2002-08-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 5 Open Access
  Notes Approved (down) Most recent IF: 1.674; 2001 IF: 0.873
  Call Number UA @ lucian @ c:irua:37310 Serial 2677
Permanent link to this record
 

 
Author Papp, G.; Peeters, F.M.
  Title Tunneling through a combined magnetic-potential barrier Type A1 Journal article
  Year 2001 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 225 Issue Pages 433-441
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos Publication Date 0000-00-00
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited Open Access
  Notes Approved (down) Most recent IF: 1.674; 2001 IF: 0.873
  Call Number UA @ lucian @ c:irua:37309 Serial 3764
Permanent link to this record
 

 
Author Habermeier, H.U.; Razavi, F.; Lebedev, O.; Gross, G.M.; Praus, R.; Zhang, P.X.
  Title Correlation of microstructure and magnetotransport properties of epitaxially grown La-Ca-Mn-O3 thin films Type A1 Journal article
  Year 1999 Publication Physica status solidi: B: basic research T2 – International Conference on Solid State Spectroscopy – (ICSSS), SEP 05-07, 1999, SCHWABISCH-GMUND, GERMANY Abbreviated Journal Phys Status Solidi B
  Volume 215 Issue 1 Pages 679-683
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract We have investigated epitaxially grown single-crystalline Ca-doped LaMnO3 thin films using the pulsed laser deposition technique in a case study aimed to explore the possibilities buried in epitaxial stress tailoring in order to control the transport properties of CMR materials beyond the limits set by equilibrium thermodynamics. Depending on the film thickness there is an abrupt transition from pseudomorphic to epitaxial granular growth observable which is related to the epitaxial strain of the films. This is associated with microscopic stress relaxation and leads to well controllable modifications of the atomic arrangements of the Mn-O sublattice in the films. Due to the interrelation of double exchange, spin-, charge- and orbital ordering and the Jahn-Teller effect mediated coupling of the electronic system to the crystal lattice, the magnetotransport properties of the firms can be modified in a controllable way.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000082487800110 Publication Date 2002-09-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 3 Open Access
  Notes Approved (down) Most recent IF: 1.674; 1999 IF: 0.978
  Call Number UA @ lucian @ c:irua:103489 Serial 527
Permanent link to this record
 

 
Author Riva, C.; Schweigert, V.A.; Peeters, F.M.
  Title Angular momentum transitions and magnetic evaporation in off-center D- centers in quantum well Type A1 Journal article
  Year 1998 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 210 Issue Pages 599-603
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000077607400058 Publication Date 2002-09-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 1 Open Access
  Notes Approved (down) Most recent IF: 1.674; 1998 IF: 0.818
  Call Number UA @ lucian @ c:irua:24182 Serial 117
Permanent link to this record
 

 
Author Riva, C.; Varga, K.; Schweigert, V.A.; Peeters, F.M.
  Title Binding energy and structure of localized biexcitons in quantum wells Type A1 Journal article
  Year 1998 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 210 Issue Pages 689-692
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000077607400073 Publication Date 2002-09-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972;1521-3951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 12 Open Access
  Notes Approved (down) Most recent IF: 1.674; 1998 IF: 0.818
  Call Number UA @ lucian @ c:irua:24181 Serial 238
Permanent link to this record
 

 
Author Michel, K.H.; Neek-Amal, M.; Peeters, F.M.
  Title Static flexural modes and piezoelectricity in 2D and layered crystals Type A1 Journal article
  Year 2016 Publication Physica status solidi: B: basic research Abbreviated Journal Phys Status Solidi B
  Volume 253 Issue 253 Pages 2311-2315
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract Piezo- and flexoelectricity are manifestations of electromechanical coupling in solids with potential applications in nanoscale materials. Naumov etal. [Phys. Rev. Lett. 102, 217601 (2009)] have shown by first principles calculations that a monolayer BN sheet becomes macroscopically polarized in-plane when in a corrugated state. Here, we investigate the interplay of layer corrugation and in-plane polarization by atomistic lattice dynamics. We treat the coupling between static flexural modes and in-plane atomic ion displacements as an anharmonic effect, similar to the membrane effect that is at the origin of negative thermal expansion in layered crystals. We have derived analytical expressions for the corrugation-induced static in-plane strains and the optical displacements with the resulting polarization response functions. Beyond h-BN, the theory applies to transition metal dichalcogenides and dioxides. Numerical calculations show that the effects are considerably stronger for 2D h-BN than for 2H-MoS2.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000390339000002 Publication Date 2016-10-21
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0370-1972 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.674 Times cited 5 Open Access
  Notes ; The authors acknowledge useful discussions with L. Wirtz, A. Molina-Sanchez, and C. Sevik. This work was supported by the ESF-Eurographene project CONGRAN, and the Flemish Science Foundation (FWO-Vl). ; Approved (down) Most recent IF: 1.674
  Call Number UA @ lucian @ c:irua:140309 Serial 4462
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