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Author (down) Mazo, G.N.; Savvin, S.N.; Abakumov, A.M.; Hadermann, J.; Dobrovol'skii, Y.A.; Leonova, L.S.
  Title Lanthanum-strontium cuprate as a promising cathodic matreila for solid oxide fuel cells Type A1 Journal article
  Year 2007 Publication Russian journal of electrochemistry Abbreviated Journal Russ J Electrochem+
  Volume 43 Issue 4 Pages 436-442
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000246338500010 Publication Date 2007-05-09
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1023-1935;1608-3342; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 0.828 Times cited 8 Open Access
  Notes Approved Most recent IF: 0.828; 2007 IF: 0.263
  Call Number UA @ lucian @ c:irua:62062 Serial 1777
Permanent link to this record
 

 
Author (down) Mazhar, R.; Azadi, H.; Van Passel, S.; Varnik, R.; Pietrzykowski, M.; Skominas, R.; Wei, Z.; Xuehao, B.
  Title Does contract length matter? The impact of various contract-farming regimes on land-improvement investment and the efficiency of contract farmers in Pakistan Type A1 Journal article
  Year 2023 Publication Agriculture (Basel) Abbreviated Journal
  Volume 13 Issue 9 Pages 1651-16
  Keywords A1 Journal article; Engineering Management (ENM)
  Abstract Land-tenure security is integral to local communities' socioeconomic development. It has been a center of debate in academia and for legislators and advocates to implement reforms to enhance efficient and sustainable development in land management. Yet, knowledge gaps remain in how various contract-farming regimes contribute to land-improvement investment and technical efficiency. This study used a data set of 650 farm households collected through a two-stage stratified sampling to investigate the influence of three contract-farming regimes: long-term, medium-term, and short-term contracts, on the land-improvement investment, productivity, and technical efficiency of contract farmers in Punjab, Pakistan. The study used multivariate probit and ordinary least square regression models to examine the posit relationships. The findings highlight that farmers with long-term land contracts have higher per hectare yield, income and profit than those with medium-term and short-term contracts. The results confirm that farmers with medium- and long-term contracts tend to invest more in land-improvement measures, i.e., organic and green manure. Further, the study findings demonstrate that long-term land tenures are more effective when farmers make decisions regarding the on-farm infrastructure, like tube-well installation, tractor ownership, and holding farm logistics. Last, the study results confirm that long-term contracts are more robust regarding technical efficiency. Moreover, the findings support the Marshallian inefficiency hypothesis and extend the literature on contract farming, land-improvement investment, and land use policy, and offer coherent policy actions for stakeholders to improve farmers' productivity, technical efficiency, and income.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 001071045300001 Publication Date 2023-08-22
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 2077-0472 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:200373 Serial 9201
Permanent link to this record
 

 
Author (down) Mayrock, O.; Wünsche, H.-J.; Henneberger, F.; Riva, C.; Schweigert, V.A.; Peeters, F.M.
  Title Weakly localized biexcitons in quantum wells Type A1 Journal article
  Year 1999 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 60 Issue Pages 5582-5589
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lancaster, Pa Editor
  Language Wos 000082478600068 Publication Date 2002-07-27
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0163-1829;1095-3795; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 17 Open Access
  Notes Approved Most recent IF: 3.836; 1999 IF: NA
  Call Number UA @ lucian @ c:irua:27009 Serial 3912
Permanent link to this record
 

 
Author (down) Mayer, M.; Scarabelli, L.; March, K.; Altantzis, T.; Tebbe, M.; Kociak, M.; Bals, S.; Garcia de Abajo, F.J.; Fery, A.; Liz-Marzan, L.M.
  Title Controlled Living Nanowire Growth: Precise Control over the Morphology and Optical Properties of AgAuAg Bimetallic Nanowires Type A1 Journal article
  Year 2015 Publication Nano letters Abbreviated Journal Nano Lett
  Volume 15 Issue 15 Pages 5427-5437
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract Inspired by the concept of living polymerization reaction, we are able to produce silver-gold-silver nanowires with a precise control over their total length and plasmonic properties by establishing a constant silver deposition rate on the tips of penta-twinned gold nanorods used as seed cores. Consequently, the length of the wires increases linearly in time. Starting with approximately 210 nm x 32 nm gold cores, we produce nanowire lengths up to several microns in a highly controlled manner, with a small self-limited increase in thickness of approximately 4 nm, corresponding to aspect ratios above 100, whereas the low polydispersity of the product allows us to detect up to nine distinguishable plasmonic resonances in a single colloidal solution. We analyze the spatial distribution and the nature of the plasmons by electron energy loss spectroscopy and obtain excellent agreement between measurements and electromagnetic simulations, clearly demonstrating that the presence of the gold core plays a marginal role, except for relatively short wires or high-energy modes.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language English Wos 000359613700087 Publication Date 2015-07-03
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1530-6984;1530-6992; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 12.712 Times cited 117 Open Access OpenAccess
  Notes L.M.L.-M. acknowledges funding from the European Research Council Advanced Grant PLASMAQUO (No. 267867) and from the Spanish MINECO (grant MAT2013-46101-R). S.B. acknowledges funding from ERC Starting Grant COLOURATOMS (335078). The research leading to these results has received funding from the European Union Seventh Framework Programme under Grant Agreements 312483 (ESTEEM2) and 262348 (ESMI). M.M., M.T., and A.F. acknowledge funding from the European Research Council starting grant METAMECH (No 306686). M.T. was supported by the Elite Network Bavaria in the frame of the Elite Study Program “Macromolecular Science” and funded via a grant for Ph.D. candidates according to Bavarian elite promotion law (BayEFG). F.J.G.deA. acknowledges funding from the Spanish MINECO (grant MAT2014-59096-P).; esteem2jra3; esteem2jra4; ECAS_Sara; (ROMEO:white; preprint:; postprint:restricted 12 months embargo; pdfversion:cannot); Approved Most recent IF: 12.712; 2015 IF: 13.592
  Call Number c:irua:129687 c:irua:129687 Serial 3975
Permanent link to this record
 

 
Author (down) Mayer, J.A.; Offermans, T.; Chrapa, M.; Pfannmöller, M.; Bals, S.; Ferrini, R.; Nisato, G.
  Title Optical enhancement of a printed organic tandem solar cell using diffractive nanostructures Type A1 Journal article
  Year 2018 Publication Optics express Abbreviated Journal Opt Express
  Volume 26 Issue 26 Pages A240
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract Solution processable organic tandem solar cells offer a promising approach to achieve cost-effective, lightweight and flexible photovoltaics. In order to further enhance the efficiency of optimized organic tandem cells, diffractive light-management nanostructures were designed for an optimal redistribution of the light as function of both wavelength and propagation angles in both sub-cells. As the fabrication of these optical structures is compatible with roll-to-roll production techniques such as hot-embossing or UV NIL imprinting, they present an optimal cost-effective solution for printed photovoltaics. Tandem cells with power conversion efficiencies of 8-10% were fabricated in the ambient atmosphere by doctor blade coating, selected to approximate the conditions during roll-to-roll manufacturing. Application of the light management structure onto an 8.7% efficient encapsulated tandem cell boosted the conversion efficiency of the cell to 9.5%. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000427900400003 Publication Date 2018-02-26
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1094-4087 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.307 Times cited 9 Open Access OpenAccess
  Notes ; FP7 European collaborative project SUNFLOWER (FP7-ICT-2011-7, grant number 287594); German Federal Ministry of Education and Research (BMBF) (03xEK3504, project TAURUS); FP7 European project ESTEEM2 (grant number 312483); HEiKA centre FunTECH-3D. ; Approved Most recent IF: 3.307
  Call Number UA @ lucian @ c:irua:150839UA @ admin @ c:irua:150839 Serial 4975
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Author (down) Mayda, S.; Monico, L.; Krishnan, D.; De Meyer, S.; Cotte, M.; Garrevoet, J.; Falkenberg, G.; Sandu, I.C.A.; Partoens, B.; Lamoen, D.; Romani, A.; Miliani, C.; Verbeeck, J.; Janssens, K.
  Title A combined experimental and computational approach to understanding CdS pigment oxidation in a renowned early 20th century painting Type A1 Journal article
  Year 2023 Publication Chemistry of materials Abbreviated Journal
  Volume 35 Issue 24 Pages 10403-10415
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT); Antwerp X-ray Imaging and Spectroscopy (AXIS)
  Abstract Cadmium sulfide (CdS)-based yellow pigments have been used in a number of early 20th century artworks, including The Scream series painted by Edvard Munch. Some of these unique paintings are threatened by the discoloration of these CdS-based yellow oil paints because of the oxidation of the original sulfides to sulfates. The experimental data obtained here prove that moisture and cadmium chloride compounds play a key role in promoting such oxidation. To clarify how these two factors effectively prompt the process, we studied the band alignment between CdS, CdCl2, and Cd-(OH)Cl as well as the radicals center dot OH and H3O center dot by density functional theory (DFT) methods. Our results show that a stack of several layers of Cd-(OH)Cl creates a pocket of positive holes at the Cl-terminated surface and a pocket of electrons at the OH-terminated surface by leading in a difference in ionization energy at both surfaces. The resulting band alignment indicates that Cd-(OH)Cl can indeed play the role of an oxidative catalyst for CdS in a moist environment, thus providing an explanation for the experimental evidence.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 001133000900001 Publication Date 2023-12-08
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0897-4756; 1520-5002 ISBN Additional Links UA library record; WoS full record
  Impact Factor 8.6 Times cited Open Access
  Notes The experimental research on the cadmium yellow powders/paint mock-ups and The Scream (ca. 1910) was financially supported by the European Union, research projects IPERION-CH (H2020-INFRAIA-2014-2015, GA no. 654028) and IPERION-HS (H2020-INFRAIA-2019-1, GA no. 871034) and the project AMIS within the program Dipartimenti di Eccellenza 2018-2022 (funded by MUR and the University of Perugia). For the beamtime grants received, the authors thank the ESRF-ID21 beamline (experiments HG64 and HG95), the DESY-P06 beamline, a member of the Helmholtz Association HGF (experiments I-20130221 EC and I-20160126 EC), and the project CALIPSOplus under the GA no. 730872 from the E.U. Framework Programme for Research and Innovation Horizon 2020. All of the staff of the MUNCH Museum (Conservation Department) is acknowledged for their collaboration. 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 Most recent IF: 8.6; 2023 IF: 9.466
  Call Number UA @ admin @ c:irua:202836 Serial 8999
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Author (down) 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 Most recent IF: 1.674; 2015 IF: 1.489
  Call Number UA @ lucian @ c:irua:128776 Serial 4277
Permanent link to this record
 

 
Author (down) Matulis, A.; Peeters, F.M.; Vasilopoulos, P.
  Title Two-dimensional tunneling through magnetic barriers Type A1 Journal article
  Year 1994 Publication Surface science : a journal devoted to the physics and chemistry of interfaces Abbreviated Journal Surf Sci
  Volume 305 Issue Pages 434-437
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Amsterdam Editor
  Language Wos A1994ND67400082 Publication Date 2002-10-18
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0039-6028; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.925 Times cited 2 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:9379 Serial 3778
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Author (down) Matulis, A.; Peeters, F.M.; Vasilopoulos, P.
  Title Wavevector-dependent tunneling through magnetic barriers Type A1 Journal article
  Year 1994 Publication Physical review letters Abbreviated Journal Phys Rev Lett
  Volume 72 Issue Pages 1518-1521
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication New York, N.Y. Editor
  Language Wos A1994MZ11500032 Publication Date 2002-07-27
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0031-9007; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 7.512 Times cited 403 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:9364 Serial 3909
Permanent link to this record
 

 
Author (down) Matulis, A.; Peeters, F.M.
  Title Analogy between one-dimensional chain models and graphene Type A1 Journal article
  Year 2009 Publication American journal of physics Abbreviated Journal Am J Phys
  Volume 77 Issue 7 Pages 595-601
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract The electron and hole spectrum in single and bilayer graphene is derived from known one-dimensional models, and the relation between the spectrum and symmetry of the lattice is shown.
  Address
  Corporate Author Thesis
  Publisher Place of Publication New York, N.Y. Editor
  Language Wos 000266976000003 Publication Date 2009-06-11
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0002-9505; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.069 Times cited 11 Open Access
  Notes Approved Most recent IF: 1.069; 2009 IF: 0.779
  Call Number UA @ lucian @ c:irua:77381 Serial 97
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Author (down) Matulis, A.; Peeters, F.M.
  Title Appearance of enhanced Weiss oscillations in graphene: theory Type A1 Journal article
  Year 2007 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 75 Issue 12 Pages 125429,1-6
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lancaster, Pa Editor
  Language Wos 000245330200106 Publication Date 2007-03-28
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 65 Open Access
  Notes Approved Most recent IF: 3.836; 2007 IF: 3.172
  Call Number UA @ lucian @ c:irua:64294 Serial 138
Permanent link to this record
 

 
Author (down) Matulis, A.; Peeters, F.M.
  Title Electron correlation effects in quantum dots Type P3 Proceeding
  Year 1995 Publication Abbreviated Journal
  Volume Issue Pages 1875-1878
  Keywords P3 Proceeding; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher World Scientific Place of Publication Singapore Editor
  Language Wos Publication Date 0000-00-00
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN ISBN Additional Links UA library record
  Impact Factor Times cited Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:12204 Serial 914
Permanent link to this record
 

 
Author (down) Matulis, A.; Peeters, F.M.
  Title Magnetoresistance of a two-dimensional electron gas in weakly modulated magnetic fields Type A1 Journal article
  Year 2000 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 62 Issue Pages 91-94
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lancaster, Pa Editor
  Language Wos 000088037000024 Publication Date 2002-07-27
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0163-1829;1095-3795; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 41 Open Access
  Notes Approved Most recent IF: 3.836; 2000 IF: NA
  Call Number UA @ lucian @ c:irua:28512 Serial 1929
Permanent link to this record
 

 
Author (down) Matulis, A.; Peeters, F.M.
  Title Quasibound states of quantum dots in single and bilayer graphene Type A1 Journal article
  Year 2008 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 77 Issue Pages 115423,1-7
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lancaster, Pa Editor
  Language Wos 000254542800175 Publication Date 2008-03-14
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 153 Open Access
  Notes Approved Most recent IF: 3.836; 2008 IF: 3.322
  Call Number UA @ lucian @ c:irua:69631 Serial 2799
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Author (down) Matulis, A.; Peeters, F.M.
  Title Renormalized perturbation series for quantum dots Type A1 Journal article
  Year 1994 Publication Journal of physics : condensed matter Abbreviated Journal J Phys-Condens Mat
  Volume 6 Issue Pages 7751-7762
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos A1994PH49300013 Publication Date 2002-08-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0953-8984;1361-648X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.346 Times cited 77 Open Access
  Notes Approved PHYSICS, MULTIDISCIPLINARY 6/79 Q1 #
  Call Number UA @ lucian @ c:irua:9368 Serial 2873
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Author (down) Matulis, A.; Peeters, F.M.
  Title Wigner crystallization in the two electron quantum dot Type A1 Journal article
  Year 2001 Publication Solid state communications Abbreviated Journal Solid State Commun
  Volume 117 Issue Pages 655-660
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication New York, N.Y. Editor
  Language Wos 000167475900006 Publication Date 2002-07-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0038-1098; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.554 Times cited 34 Open Access
  Notes Approved Most recent IF: 1.554; 2001 IF: 1.381
  Call Number UA @ lucian @ c:irua:37305 Serial 3920
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Author (down) Matulis, A.; Masir, M.R.; Peeters, F.M.
  Title Application of optical beams to electrons in graphene Type A1 Journal article
  Year 2011 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 83 Issue 11 Pages 115458-115458,7
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract The technique of beam optics is applied to the description of the wave function of Dirac electrons. This approach is illustrated by considering electron transmission through simple nonhomogeneous structures, such as flat and bent p-n junctions and superlattices. We found that a convex p-n junction compresses the beam waist, while a concave interface widens it without loosing its focusing properties. At a flat p-n junction the waist of the transmitted Gaussian beam can be narrowed or widened, depending on the angle of incidence. A general condition is derived for the occurrence of beam collimation in a superlattice which is less stringent than previous discussed.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000288896400013 Publication Date 2011-03-29
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 13 Open Access
  Notes ; This research was supported by the Flemish Science Foundation (Grant No. FWO-Vl), by the Belgian Science policy (IAP), and (in part) by the Lithuanian Science Council under project No. MIP-79/2010. ; Approved Most recent IF: 3.836; 2011 IF: 3.691
  Call Number UA @ lucian @ c:irua:89377 Serial 142
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Author (down) Matulis, A.; Masir, M.R.; Peeters, F.M.
  Title Scattering of a Dirac electron on a mass barrier Type A1 Journal article
  Year 2012 Publication Physical review : A : atomic, molecular and optical physics Abbreviated Journal Phys Rev A
  Volume 86 Issue 2 Pages 022101
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract The interaction of a wave packet (and in particular the wave front) with a mass barrier is investigated in one dimension. We discuss the main features of the wave packet that are inherent to two-dimensional wave packets, such as compression during reflection, penetration in the case when the energy is lower than the height of the barrier, waving tails, precursors, and the retardation of the reflected and penetrated wave packets. These features depend on the wave-packet envelope function which we demonstrate by considering the case of a rectangular wave packet with sharp front and trailing edges and a smooth Gaussian wave packet. The method of Fourier integral for obtaining the nonstationary solutions is used.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lancaster, Pa Editor
  Language Wos 000306991200001 Publication Date 2012-08-01
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1050-2947;1094-1622; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.925 Times cited 9 Open Access
  Notes ; This research was supported by the Flemish Science Foundation (FWO-Vl) and (in part) by the Lithuanian Science Council under Project No. MIP-79/2010. ; Approved Most recent IF: 2.925; 2012 IF: 3.042
  Call Number UA @ lucian @ c:irua:100822 Serial 2948
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Author (down) Matsubara, M.; Saniz, R.; Partoens, B.; Lamoen, D.
  Title Doping anatase TiO2with group V-b and VI-b transition metal atoms: a hybrid functional first-principles study Type A1 Journal article
  Year 2017 Publication Physical chemistry, chemical physics Abbreviated Journal Phys Chem Chem Phys
  Volume 19 Issue 19 Pages 1945-1952
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT)
  Abstract We investigate the role of transition metal atoms of group V-b (V, Nb, Ta) and VI-b (Cr, Mo, W) as n- or p-type dopants in anatase TiO$2$ using thermodynamic

principles and density functional theory with the Heyd-Scuseria-Ernzerhof HSE06 hybrid functional. The HSE06 functional provides a realistic value for the band gap, which ensures a correct classification of dopants as shallow or deep donors or acceptors. Defect formation energies and thermodynamic transition levels are calculated taking into account the constraints imposed by the stability of TiO$
2$ and the solubility limit of the impurities.

Nb, Ta, W and Mo are identified as shallow donors. Although W provides two electrons, Nb and Ta show a considerable lower formation energy, in particular under O-poor conditions. Mo donates in principle one electron, but under specific conditions can turn into a double donor. V impurities are deep donors and Cr

shows up as an amphoteric defect, thereby acting as an electron trapping center in n-type TiO$_2$ especially under O-rich conditions. A comparison with the available experimental data yields excellent agreement.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000394426400027 Publication Date 2016-12-12
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1463-9076 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 4.123 Times cited 19 Open Access OpenAccess
  Notes We gratefully acknowledge financial support from the IWTVlaanderenthrough projects G.0191.08 and G.0150.13, and the BOF-NOI of the University of Antwerp. This work was carried out using the HPC infrastructure of the University of Antwerp (CalcUA), a division of the Flemish Supercomputer Center VSC, which is funded by the Hercules foundation. M. M. acknowledges financial support from the GOA project ‘‘XANES meets ELNES’’ of the University of Antwerp. Approved Most recent IF: 4.123
  Call Number EMAT @ emat @ c:irua:140835 Serial 4421
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Author (down) Matsubara, M.; Amini, M.N.; Saniz, R.; Lamoen, D.; Partoens, B.
  Title Attracting shallow donors : hydrogen passivation in (Al,Ga,In)-doped ZnO Type A1 Journal article
  Year 2012 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 86 Issue 16 Pages 165207
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT)
  Abstract The hydrogen interstitial and the substitutional AlZn, GaZn, and InZn are all shallow donors in ZnO and lead to n-type conductivity. Although shallow donors are expected to repel each other, we show by first-principles calculations that in ZnO these shallow donor impurities attract and form a complex, leading to a donor level deep in the band gap. This puts a limit on the n-type conductivity of (Al,Ga,In)-doped ZnO in the presence of hydrogen.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000310131300008 Publication Date 2012-10-22
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 7 Open Access
  Notes Iwt; Fwo; Bof-Noi Approved Most recent IF: 3.836; 2012 IF: 3.767
  Call Number UA @ lucian @ c:irua:101780 Serial 202
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Author (down) Matnazarova, S.; Khalilov, U.; Yusupov, M.
  Title Effect of endohedral nickel atoms on the hydrophilicity of carbon nanotubes Type A1 Journal article
  Year 2023 Publication Molecular simulation Abbreviated Journal
  Volume 49 Issue 17 Pages 1575-1581
  Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
  Abstract Carbon nanotubes (CNTs) have been successfully used in biomedicine, including cancer therapy, due to their unique physico-chemical properties. Because pristine CNTs exhibit hydrophobic behaviour, they can have a cytotoxic effect on cells, which limits their practical use in biomedicine. The toxicity of CNTs can be reduced by adding water-soluble functional radicals to their surface, i.e. by increasing their hydrophilicity. Another possibility for increasing the hydrophilicity of CNTs is probably filling them with endohedral metal atoms, which has not yet been studied. Thus, in this study, we use computer simulations to investigate the combined effect of endohedral nickel atoms and functional groups on the hydrophilicity of CNTs. Our simulation results show that the introduction of endohedral nickel atoms into CNTs increases their binding energy with functional groups. We also find that the addition of functional groups to the surface of CNT, along with filling it with endohedral nickel atoms, leads to an increase in the dipole moment of the CNT as well as its interaction energy with water, thereby increasing the hydrophilicity of the CNT and, consequently, its solubility in water. This, in turn, can lead to a decrease in CNT toxicity.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 001059544800001 Publication Date 2023-09-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0892-7022 ISBN Additional Links UA library record; WoS full record
  Impact Factor 2.1 Times cited Open Access
  Notes Approved Most recent IF: 2.1; 2023 IF: 1.254
  Call Number UA @ admin @ c:irua:199261 Serial 9027
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Author (down) Massobrio, C.; Djimbi, D.M.; Matsubara, M.; Scipioni, R.; Boero, M.
  Title Stability of Ge12C48 and Ge20C40 heterofullerenes : a first principles molecular dynamics study Type A1 Journal article
  Year 2013 Publication Chemical physics letters Abbreviated Journal Chem Phys Lett
  Volume 556 Issue Pages 163-167
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract By using first-principles molecular dynamics, we address the issue of structural stability for the C-60 Ge-m(m) family of doped heterofullerenes through a set of calculations targeting C48Ge12 and C40Ge20. Three kinds of theoretical tools are employed: (a) static structural optimization, (b) a bonding analysis based on localized orbitals (Wannier wavefunctions and centers) and (c) first-principles molecular dynamics at finite temperature. This latter tool allows concluding that the segregated form of C40Ge20 is less stable than its Si-based counterpart. However, the non-segregated forms of C40Ge20 and C40Si20 have comparable stabilities at finite temperatures. (C) 2012 Elsevier B. V. All rights reserved.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Amsterdam Editor
  Language Wos 000313644100032 Publication Date 2012-11-28
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0009-2614; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.815 Times cited 3 Open Access
  Notes Approved Most recent IF: 1.815; 2013 IF: 1.991
  Call Number UA @ lucian @ c:irua:110085 Serial 3132
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Author (down) Maso, L.; Trande, M.; Liberi, S.; Moro, G.; Daems, E.; Linciano, S.; Sobott, F.; Covaceuszach, S.; Cassetta, A.; Fasolato, S.; Moretto, L.M.; De Wael, K.; Cendron, L.; Angelini, A.
  Title Unveiling the binding mode of perfluorooctanoic acid to human serum albumin Type A1 Journal article
  Year 2021 Publication Protein Science Abbreviated Journal Protein Sci
  Volume 30 Issue 4 Pages 830-841
  Keywords A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
  Abstract Perfluorooctanoic acid (PFOA) is a toxic compound that is absorbed and distributed throughout the body by noncovalent binding to serum proteins such as human serum albumin (hSA). Though the interaction between PFOA and hSA has been already assessed using various analytical techniques, a high resolution and detailed analysis of the binding mode is still lacking. We report here the crystal structure of hSA in complex with PFOA and a medium-chain saturated fatty acid (FA). A total of eight distinct binding sites, four occupied by PFOAs and four by FAs, have been identified. In solution binding studies confirmed the 4:1 PFOA-hSA stoichiometry and revealed the presence of one high and three low affinity binding sites. Competition experiments with known hSA-binding drugs allowed locating the high affinity binding site in sub-domain IIIA. The elucidation of the molecular basis of the interaction between PFOA and hSA might provide not only a better assessment of the absorption and elimination mechanisms of these compounds in vivo but also have implications for the development of novel molecular receptors for diagnostic and biotechnological applications.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000625392600001 Publication Date 2021-02-08
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0961-8368 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.523 Times cited Open Access Not_Open_Access
  Notes Approved Most recent IF: 2.523
  Call Number UA @ admin @ c:irua:176725 Serial 8714
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Author (down) Masir, M.R.; Vasilopoulos, P.; Peeters, F.M.
  Title Fabry-Pérot resonances in graphene microstructures: influence of a magnetic field Type A1 Journal article
  Year 2010 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
  Volume 82 Issue 11 Pages 115417-115417,12
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract Fabry-Pérot resonances in the transmission through single and double, graphene-based barriers (of height V) and wells are investigated and their dependence on an applied perpendicular magnetic field. For rectangular barriers the conductance decreases with increasing magnetic field while the resonances weaken (become more pronounced) with increasing magnetic field for EF<V (EF>V). The position of the resonances exhibit a linear shift with magnetic field which move to lower (higher) energy for EF<V (EF>V). Compared to semielliptic- or Gaussian-shaped barriers they show a smaller number of resonances in the absence of a magnetic field and an overall lower conductance but the resonant structure is more pronounced. The conductance of asymmetric double barriers show two major regions of resonances while the symmetric ones show one, that of three asymmetric barriers three, and so on.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000281723100007 Publication Date 2010-09-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 74 Open Access
  Notes ; This work was supported by the Flemish Science Foundation (FWO-Vl), the Belgian Science Policy (IAP) and the Canadian NSERC under Grant No. OGP0121756. ; Approved Most recent IF: 3.836; 2010 IF: 3.774
  Call Number UA @ lucian @ c:irua:84871 Serial 1167
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Author (down) Masir, M.R.; Vasilopoulos, P.; Peeters, F.M.
  Title Graphene in inhomogeneous magnetic fields : bound, quasi-bound and scattering states Type A1 Journal article
  Year 2011 Publication Journal of physics : condensed matter Abbreviated Journal J Phys-Condens Mat
  Volume 23 Issue 31 Pages 315301,1-315301,14
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract The electron states in graphene-based magnetic dot and magnetic ring structures and combinations of both are investigated. The corresponding spectra are studied as a function of the radii, the strengths of the inhomogeneous magnetic field and of a uniform background field, the strength of an electrostatic barrier and the angular momentum quantum number. In the absence of an external magnetic field we have only long-lived quasi-bound and scattering states and we assess their influence on the density of states. In addition, we consider elastic electron scattering by a magnetic dot, whose average B vanishes, and show that the Hall and longitudinal resistivities, as a function of the Fermi energy, exhibit a pronounced oscillatory structure due to the presence of quasi-bound states. Depending on the dot parameters this oscillatory structure differs substantially for energies below and above the first Landau level.
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos 000293008900002 Publication Date 2011-07-16
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0953-8984;1361-648X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.649 Times cited 38 Open Access
  Notes ; This work was supported by the European Science Foundation (ESF) under the EUROCORES Program EuroGRAPHENE, the Canadian NSERC grant no. OGP0121756 and the Belgian Science Policy (IAP). We acknowledge discussions and correspondence with Professor A Matulis. ; Approved Most recent IF: 2.649; 2011 IF: 2.546
  Call Number UA @ lucian @ c:irua:91176 Serial 1372
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Author (down) Masir, M.R.; Vasilopoulos, P.; Peeters, F.M.
  Title Kronig-Penney model of scalar and vector potentials in graphene Type A1 Journal article
  Year 2010 Publication Journal of physics : condensed matter Abbreviated Journal J Phys-Condens Mat
  Volume 22 Issue 46 Pages 465302,1-465302,10
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We consider a one-dimensional (1D) superlattice (SL) on graphene consisting of very high and very thin (δ-function) magnetic and potential barriers with zero average potential and zero magnetic field. We calculate the energy spectrum analytically, study it in different limiting cases, and determine the condition under which an electron beam incident on an SL is highly collimated along its direction. In the absence of the magnetic SL the collimation is very sensitive to the value of W/Ws and is optimal for W/Ws = 1, where W is the distance between the positive and negative barriers and L = W + Ws is the size of the unit cell. In the presence of only the magnetic SL the collimation decreases and the symmetry of the spectrum around ky is broken for W/Ws\neq 1 . In addition, a gap opens which depends on the strength of the magnetic field. We also investigate the effect of spatially separated potential and magnetic δ-function barriers and predict a better collimation in specific cases.
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos 000283838800004 Publication Date 2010-11-05
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0953-8984;1361-648X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.649 Times cited 41 Open Access
  Notes ; This work was supported by the Flemish Science Foundation (FWO-VI), the Belgian Science Policy (IAP), and the Canadian NSERC Grant No. OGP0121756. ; Approved Most recent IF: 2.649; 2010 IF: 2.332
  Call Number UA @ lucian @ c:irua:85807 Serial 1767
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Author (down) Masir, M.R.; Vasilopoulos, P.; Peeters, F.M.
  Title Magnetic Kronig-Penney model for Dirac electrons in single-layer graphene Type A1 Journal article
  Year 2009 Publication New journal of physics Abbreviated Journal New J Phys
  Volume 11 Issue Pages 095009,1-095009,21
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract he properties of Dirac electrons in a magnetic superlattice (SL) on graphene consisting of very high and thin (δ-function) barriers are investigated. We obtain the energy spectrum analytically and study the transmission through a finite number of barriers. The results are contrasted with those for electrons described by the Schrödinger equation. In addition, a collimation of an incident beam of electrons is obtained along the direction perpendicular to that of the SL. We also highlight an analogy with optical media in which the refractive index varies in space.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Bristol Editor
  Language Wos 000270513500008 Publication Date 2009-10-01
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1367-2630; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.786 Times cited 89 Open Access
  Notes Approved Most recent IF: 3.786; 2009 IF: 3.312
  Call Number UA @ lucian @ c:irua:79241 Serial 1884
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Author (down) Masir, M.R.; Vasilopoulos, P.; Peeters, F.M.
  Title Tunneling, conductance, and wavevector filtering through magnetic barriers in bilayer graphene Type A1 Journal article
  Year 2009 Publication Physical review : B : solid state Abbreviated Journal Phys Rev B
  Volume 79 Issue 3 Pages 035409,1-035409,8
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We evaluate the transmission and conductance through magnetic barrier structures in bilayer graphene. In particular we consider a magnetic step, single and double barriers, -function barriers, as well as barrier structures that have average magnetic field equal to zero. The transmission depends strongly on the direction of the incident electron or hole wavevector and gives the possibility to construct a direction-dependent wavevector filter. The results contrast sharply with previous results on single-layer graphene. In general, the angular range of perfect transmission becomes drastically wider and the gaps narrower. This perfect transmission range decreases with the number of barriers, the barrier width, and the magnetic field. Depending on the structure, a variety of transmission resonances occur that are reflected in the conductance through the structure.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lancaster, Pa Editor
  Language Wos 000262978200107 Publication Date 2009-01-14
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1098-0121;1550-235X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.836 Times cited 80 Open Access
  Notes Approved Most recent IF: 3.836; 2009 IF: 3.475
  Call Number UA @ lucian @ c:irua:75983 Serial 3762
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Author (down) Masir, M.R.; Vasilopoulos, P.; Peeters, F.M.
  Title Wavevector filtering through single-layer and bilayer graphene with magnetic barrier structures Type A1 Journal article
  Year 2008 Publication Applied physics letters Abbreviated Journal Appl Phys Lett
  Volume 93 Issue 24 Pages 242103,1-242103,3
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We show that the angular range of the transmission through magnetic barrier structures can be efficiently controlled in single-layer and bilayer graphenes and this renders the structures efficient wavevector filters. As the number of magnetic barriers increases, this range shrinks, the gaps in the transmission versus energy become wider, and the conductance oscillates with the Fermi energy.
  Address
  Corporate Author Thesis
  Publisher American Institute of Physics Place of Publication New York, N.Y. Editor
  Language Wos 000261896400032 Publication Date 2008-12-15
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0003-6951; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.411 Times cited 91 Open Access
  Notes Approved Most recent IF: 3.411; 2008 IF: 3.726
  Call Number UA @ lucian @ c:irua:75931 Serial 3910
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Author (down) Masir, M.R.; Vasilopoulos, P.; Matulis, A.; Peeters, F.M.
  Title Angular confinement and direction-dependent transmission in graphene nanostructures with magnetic barriers Type A1 Journal article
  Year 2009 Publication AIP conference proceedings Abbreviated Journal
  Volume 1199 Issue Pages 363-364
  Keywords A1 Journal article; Condensed Matter Theory (CMT)
  Abstract We evaluate the transmission through magnetic barriers in graphene-based nanostructures. Several particular cases are considered: a magnetic step, single and double barriers, delta -function barriers as well as barrier structures with inhomogeneous magnetic field profiles but with average magnetic field equal to zero. The transmission exhibits a strong dependence on the direction of the incident wave vector. In general the resonant structure of the transmission is significantly more pronounced for (Dirac) electrons with linear spectrum compared to that for electrons with a parabolic one.
  Address
  Corporate Author Thesis
  Publisher Place of Publication New York Editor
  Language Wos 000281590800171 Publication Date 2010-01-15
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN ISBN Additional Links UA library record; WoS full record
  Impact Factor Times cited Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ lucian @ c:irua:84892 Serial 115
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