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Author De Beule, C.; Saniz, R.; Partoens, B.
  Title Crystalline topological states at a topological insulator junction Type A1 Journal article
  Year 2019 Publication The journal of physics and chemistry of solids Abbreviated Journal J Phys Chem Solids
  Volume 128 Issue 128 Pages (up) 144-151
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT)
  Abstract We consider an interface between two strong time-reversal invariant topological insulators having surface states with opposite spin chirality, or equivalently, opposite mirror Chern number. We show that such an interface supports gapless modes that are protected by mirror symmetry. The interface states are investigated with a continuum model for the Bi2Se3 class of topological insulators that takes into account terms up to third order in the crystal momentum, which ensures that the model has the correct symmetry. The model parameters are obtained from ab initio calculations. Finally, we consider the effect of rotational mismatch at the interface, which breaks the mirror symmetry and opens a gap in the interface spectrum.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000472693100013 Publication Date 2018-01-31
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-3697 ISBN Additional Links UA library record; WoS full record
  Impact Factor 2.059 Times cited Open Access
  Notes ; ; Approved Most recent IF: 2.059
  Call Number UA @ admin @ c:irua:161391 Serial 5385
Permanent link to this record
 
 
Author Amin-Ahmadi, B.; Idrissi, H.; Galceran, M.; Colla, M.S.; Raskin, J.P.; Pardoen, T.; Godet, S.; Schryvers, D.
  Title Effect of deposition rate on the microstructure of electron beam evaporated nanocrystalline palladium thin films Type A1 Journal article
  Year 2013 Publication Thin solid films : an international journal on the science and technology of thin and thick films Abbreviated Journal Thin Solid Films
  Volume 539 Issue Pages (up) 145-150
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract The influence of the deposition rate on the formation of growth twins in nanocrystalline Pd films deposited by electron beam evaporation is investigated using transmission electron microscopy. Statistical measurements prove that twin boundary (TB) density and volume fraction of grains containing twins increase with increasing deposition rate. A clear increase of the dislocation density was observed for the highest deposition rate of 5 Å/s, caused by the increase of the internal stress building up during deposition. Based on crystallographic orientation indexation using transmission electron microscopy, it can be concluded that a {111} crystallographic texture increases with increasing deposition rate even though the {101} crystallographic texture remains dominant. Most of the TBs are fully coherent without any residual dislocations. However, for the highest deposition rate (5 Å/s), the coherency of the TBs decreases significantly as a result of the interaction of lattice dislocations emitted during deposition with the growth TBs. The analysis of the grain boundary character of different Pd films shows that an increasing fraction of high angle grain boundaries with misorientation angles around 5565° leads to a higher potential for twin formation.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lausanne Editor
  Language Wos 000321111100025 Publication Date 2013-05-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0040-6090; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.879 Times cited 13 Open Access
  Notes Fwo Approved Most recent IF: 1.879; 2013 IF: 1.867
  Call Number UA @ lucian @ c:irua:109268 Serial 807
Permanent link to this record
 
 
Author Gillie, L.J.; Wright, A.J.; Hadermann, J.; Van Tendeloo, G.; Greaves, C.
  Title Synthesis and characterization of the reduced single-layer manganite Sr2MnO3.5+x Type A1 Journal article
  Year 2002 Publication Journal of solid state chemistry Abbreviated Journal J Solid State Chem
  Volume 167 Issue Pages (up) 145-151
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos 000177915800018 Publication Date 2002-10-07
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-4596; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.299 Times cited 25 Open Access
  Notes Approved Most recent IF: 2.299; 2002 IF: 1.671
  Call Number UA @ lucian @ c:irua:40347 Serial 3420
Permanent link to this record
 
 
Author Cooper, D.; Denneulin, T.; Bernier, N.; Béché, A.; Rouvière, J.-L.
  Title Strain mapping of semiconductor specimens with nm-scale resolution in a transmission electron microscope Type A1 Journal article
  Year 2016 Publication Micron Abbreviated Journal Micron
  Volume 80 Issue 80 Pages (up) 145-165
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract The last few years have seen a great deal of progress in the development of transmission electron microscopy based techniques for strain mapping. New techniques have appeared such as dark field electron holography and nanobeam diffraction and better known ones such as geometrical phase analysis have been improved by using aberration corrected ultra-stable modern electron microscopes. In this paper we apply dark field electron holography, the geometrical phase analysis of high angle annular dark field scanning transmission electron microscopy images, nanobeam diffraction and precession diffraction, all performed at the state-of-the-art to five different types of semiconductor samples. These include a simple calibration structure comprising 10-nm-thick SiGe layers to benchmark the techniques. A SiGe recessed source and drain device has been examined in order to test their capabilities on 2D structures. Devices that have been strained using a nitride stressor have been examined to test the sensitivity of the different techniques when applied to systems containing low values of deformation. To test the techniques on modern semiconductors, an electrically tested device grown on a SOI wafer has been examined. Finally a GaN/AlN superlattice was tested in order to assess the different methods of measuring deformation on specimens that do not have a perfect crystalline structure. The different deformation mapping techniques have been compared to one another and the strengths and weaknesses of each are discussed.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Oxford Editor
  Language Wos 000366770100018 Publication Date 2015-09-15
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0968-4328 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.98 Times cited 50 Open Access
  Notes Approved Most recent IF: 1.98
  Call Number UA @ lucian @ c:irua:136446 Serial 4401
Permanent link to this record
 
 
Author Leus, K.; Perez, J.P.H.; Folens, K.; Meledina, M.; Van Tendeloo, G.; Du Laing, G.; Van Der Voort, P.
  Title UiO-66-(SH)2 as stable, selective and regenerable adsorbent for the removal of mercury from water under environmentally-relevant conditions Type A1 Journal article
  Year 2017 Publication Faraday discussions Abbreviated Journal Faraday Discuss
  Volume 201 Issue Pages (up) 145-161
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract The dithiol functionalized UiO-66-(SH)(2) is developed as an efficient adsorbent for the removal of mercury in aqueous media. Important parameters for the application of MOFs in real-life circumstances include: stability and recyclability of the adsorbents, selectivity for the targeted Hg species in the presence of much higher concentrations of interfering species, and ability to purify wastewater below international environmental limits within a short time. We show that UiO-66-(SH)(2) meets all these criteria.
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos 000409366000009 Publication Date 2017-06-13
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1359-6640 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 3.588 Times cited 18 Open Access Not_Open_Access
  Notes ; J. P. H. P. is grateful for the funding from the Vlaamse Interuniversitaire Raad-Universitaire Ontwikkelingssamenwerking (VLIR-UOS). K. L. acknowledges the financial support from the Ghent University BOF Postdoctoral Grant (01P06813T). ; Approved Most recent IF: 3.588
  Call Number UA @ lucian @ c:irua:145653 Serial 4757
Permanent link to this record
 
 
Author de Backer, A.; Fatermans, J.; den Dekker, A.J.; Van Aert, S.
  Title Optimal experiment design for nanoparticle atom counting from ADF STEM images Type H2 Book chapter
  Year 2021 Publication Advances in imaging and electron physics T2 – Advances in imaging and electron physics Abbreviated Journal
  Volume Issue Pages (up) 145-175
  Keywords H2 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
  Abstract In this chapter, the principles of detection theory are used to quantify the probability of error for atom counting from high-resolution scanning transmission electron microscopy (HRSTEM) images. Binary and multiple hypothesis testing have been investigated in order to determine the limits to the precision with which the number of atoms in a projected atomic column can be estimated. The probability of error has been calculated when using STEM images, scattering cross-sections or peak intensities as a criterion to count atoms. Based on this analysis, we conclude that scattering cross-sections perform almost equally well as images and perform better than peak intensities. Furthermore, the optimal STEM detector design can be derived for atom counting using the expression of the probability of error. We show that for very thin objects the low-angle annular dark-field (LAADF) regime is optimal and that for thicker objects the optimal inner detector angle increases.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date 2021-03-06
  Series Editor Series Title Abbreviated Series Title
  Series Volume 217 Series Issue Edition
  ISSN ISBN 978-0-12-824607-8; 1076-5670 Additional Links UA library record
  Impact Factor Times cited Open Access Not_Open_Access
  Notes ERC Consolidator project funded by the European Union grant #770887 Picometrics Approved Most recent IF: NA
  Call Number UA @ admin @ c:irua:177530 Serial 6785
Permanent link to this record
 
 
Author Fang, C.M.; van Huis, M.A.; Zandbergen, H.W.
  Title Stability and structures of the CFCC-TmC phases : a first-principles study Type A1 Journal article
  Year 2012 Publication Computational materials science Abbreviated Journal Comp Mater Sci
  Volume 51 Issue 1 Pages (up) 146-150
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract The η-M6C, γ-M23C6, and π-M11C2 phases (M = Cr, Mn and Fe) have complex cubic lattices with lattice parameters of approximately 1.0 nm. They belong to the CFCC-TmC family (complex face-centered cubic transition metal carbides), display a rich variety of crystal structures, and play in important role in iron alloys and steels. Here we show that first-principles calculations predict high stability for the γ-M23C6 and η-M6C phases, and instability for the π-M11C2 phases, taking into account various compositional and structural possibilities. The calculations also show a wide variety in magnetic properties. The Cr-containing phases were found to be non-magnetic and the Fe-phases to be ferromagnetic, while the Mn-containing phases were found to be either ferrimagnetic or non-magnetic. Details of the local atomic structures, and the formation and stability of these precipitates in alloys are discussed.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000296214300020 Publication Date 2011-08-29
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0927-0256; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.292 Times cited 18 Open Access
  Notes Approved Most recent IF: 2.292; 2012 IF: 1.878
  Call Number UA @ lucian @ c:irua:93277 Serial 3119
Permanent link to this record
 
 
Author De wael, A.
  Title Model-based quantitative scanning transmission electron microscopy for measuring dynamic structural changes at the atomic scale Type Doctoral thesis
  Year 2021 Publication Abbreviated Journal
  Volume Issue Pages (up) xiv, 146 p.
  Keywords Doctoral thesis; Electron microscopy for materials research (EMAT)
  Abstract Nanomaterialen kunnen uiterst interessante eigenschappen vertonen voor een verscheidenheid aan veelbelovende toepassingen, gaande van zonnecrème tot batterijen voor elektrische auto’s. Een nanometer is een miljard keer kleiner dan een meter. Op deze schaal kunnen de materiaaleigenschappen volledig verschillen van bulkmaterialen op grotere schaal. Bovendien hangen de eigenschappen van nanomaterialen sterk af van hun exacte grootte en vorm. Kleine verschillen in de posities van de atomen, in de grootte-orde van een picometer (nog eens duizend maal kleiner dan een nanometer), kunnen de fysische eigenschappen al drastisch beïnvloeden. Daarom is een betrouwbare kwantificering van de atomaire structuur van kritisch belang om de evolutie naar materiaalontwerp mogelijk te maken en inzicht te verwerven in de relatie tussen de fysische eigenschappen en de structuur van nanomaterialen. Daarnaast kan de atomaire structuur van nanomaterialen ook veranderen in de loop van de tijd ten gevolge van verschillende fysische processen. Het onderzoek dat in deze thesis gepresenteerd wordt, maakt het mogelijk om de dynamische structuurveranderingen van nanomaterialen betrouwbaar te kwantificeren op atomaire schaal door gebruik te maken van raster transmissie elektronenmicroscopie (STEM). Ik heb dit gerealiseerd door methodes te ontwikkelen waarmee ik het aantal atomen “achter elkaar” kan tellen in elke atoomkolom van een nanomateriaal, en dit op basis van beelden opgenomen met een elektronenmicroscoop. Een belangrijk verschil met telmethodes voor de analyse van een enkel beeld is het schatten van de kans dat een atoomkolom atomen zal verliezen of bijkrijgen van het ene naar het andere beeld in de tijdreeks. Deze kwantitatieve methode kan het ontrafelen van de tijdsafhankelijke structuur-eigenschappen relatie van een nanomateriaal mogelijk maken, wat uiteindelijk kan leiden tot efficiënter design en productie van nanomaterialen voor innovatieve toepassingen.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date
  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 Most recent IF: NA
  Call Number UA @ admin @ c:irua:179514 Serial 6870
Permanent link to this record
 
 
Author Tikhomirov, A.S.; Sorokina, N.E.; Shornikova, O.N.; Morozov, V.A.; Van Tendeloo, G.; Avdeev, V.V.
  Title The chemical vapor infiltration of exfoliated graphite to produce carbon/carbon composites Type A1 Journal article
  Year 2011 Publication Carbon Abbreviated Journal Carbon
  Volume 49 Issue 1 Pages (up) 147-153
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract Chemical vapor infiltration was used for the production of carbon/carbon composites based on exfoliated graphite and pyrolytic carbon Two different exfoliated graphites compacted to densities of 0 05-0 4 g/cm(3) were used as a preform The influence of the synthesis conditions (temperature, pressure, time etc) on the degree of infiltration, the pyrolytic carbon morphology and the C/C composite characteristics was examined using Raman spectroscopy, scanning electron microscopy and low-temperature nitrogen adsorption (C) 2010 Elsevier Ltd All rights reserved
  Address
  Corporate Author Thesis
  Publisher Place of Publication Oxford Editor
  Language Wos 000284977500021 Publication Date 2010-09-08
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0008-6223; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 6.337 Times cited 7 Open Access
  Notes Iap Approved Most recent IF: 6.337; 2011 IF: 5.378
  Call Number UA @ lucian @ c:irua:99185 Serial 354
Permanent link to this record
 
 
Author Fedina, L.; Gutakovskii, A.; Aseev, A.; van Landuyt, J.; Vanhellemont, J.
  Title Extended defects formation in Si crystals by clustering of intrinsic point defects studied by in-situ electron irradiation in an HREM Type A1 Journal article
  Year 1999 Publication Physica status solidi: A: applied research T2 – International Conference on Extended Defects in Semiconductors (EDS 98), Sept. 06-11, 1998, Jaszowiec, Poland Abbreviated Journal Phys Status Solidi A
  Volume 171 Issue 1 Pages (up) 147-157
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract In situ irradiation experiments in a high resolution electron microscope JEOL-4000EX at room temperature resulted in discovery of the isolated and combined clustering of vacancies and self-interstitial atoms on {111}- and {113}-habit planes both leading to an extended defect formation in Si crystals. The type of the defect is strongly affected by the type of supersaturation of point defects depending on the crystal thickness during electron irradiation. Because of the existence of energy barriers against recombination of interstitials with the extended aggregates of vacancies, a large family of intermediate defect configurations (IDCs) is formed on {113}- and {111}-habit planes at a low temperature under interstitial supersaturation in addition to the well-known {133}-defects of interstitial type. The formation of metastable IDCs inside vacancy aggregates prevents a way of recombination of defects in extended shape.
  Address
  Corporate Author Thesis
  Publisher Wiley Place of Publication Berlin Editor
  Language Wos 000078539700020 Publication Date 2002-09-10
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0031-8965;1521-396X; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited 40 Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ lucian @ c:irua:95798 Serial 1152
Permanent link to this record
 
 
Author Fedina, L.; Gutakovskii, A.; Aseev, A.; van Landuyt, J.; Vanhellemont, J.
  Title Extended defects formation in Si crystals by clustering of intrinsic point defects studied by in-situ irradiation in an HREM Type A1 Journal article
  Year 1999 Publication Physica status solidi: A: applied research Abbreviated Journal Phys Status Solidi A
  Volume 171 Issue 1 Pages (up) 147-157
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Berlin Editor
  Language Wos 000078539700020 Publication Date 0000-00-00
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0031-8965 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited 40 Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ lucian @ c:irua:29687 Serial 1153
Permanent link to this record
 
 
Author Buschmann, V.; Fedina, L.; Rodewald, M.; Van Tendeloo, G.
  Title A new model for the (2x1) reconstructed CoSi2-Si(100) interface Type A1 Journal article
  Year 1998 Publication Philosophical magazine letters Abbreviated Journal Phil Mag Lett
  Volume 77 Issue 3 Pages (up) 147-151
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos 000072112000004 Publication Date 2002-07-26
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0950-0839;1362-3036; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 0.941 Times cited 10 Open Access
  Notes Approved Most recent IF: 0.941; 1998 IF: 1.152
  Call Number UA @ lucian @ c:irua:25655 Serial 2326
Permanent link to this record
 
 
Author Verbruggen, S.W.; Keulemans, M.; Goris, B.; Blommaerts, N.; Bals, S.; Martens, J.A.; Lenaerts, S.
  Title Plasmonic ‘rainbow’ photocatalyst with broadband solar light response for environmental applications Type A1 Journal article
  Year 2016 Publication Applied catalysis : B : environmental Abbreviated Journal Appl Catal B-Environ
  Volume 188 Issue 188 Pages (up) 147-153
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Sustainable Energy, Air and Water Technology (DuEL)
  Abstract We propose the concept of a ‘rainbow’ photocatalyst that consists of TiO2 modified with gold-silver alloy nanoparticles of various sizes and compositions, resulting in a broad plasmon absorption band that covers the entire UV–vis range of the solar spectrum. It is demonstrated that this plasmonic ‘rainbow’ photocatalyst is 16% more effective than TiO2 P25 under both simulated and real solar light for pollutant degradation at the solid-gas interface. With this we provide a promising strategy to maximize the spectral response for solar to chemical energy conversion.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000372677500016 Publication Date 2016-02-03
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0926-3373 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 9.446 Times cited 47 Open Access OpenAccess
  Notes S.W.V. and B.G. acknowledge the Research Foundation—Flanders (FWO) for a postdoctoral fellowship. M.K. acknowledges IWT for the doctoral scholarship. S.B. acknowledges the European Research Council (ERC) for financial support through the ERC grant agreement no. 335078-COLOURATOM. J.A.M. acknowledges the Flemish government for long-term structural funding (Methusalem).; ECAS_Sara; (ROMEO:green; preprint:; postprint:can ; pdfversion:cannot); Approved Most recent IF: 9.446
  Call Number c:irua:130995 Serial 4061
Permanent link to this record
 
 
Author Stefan, M.; Nistor, S.V.; Mateescu, D.C.; Abakumov, A.M.
  Title Growth of pure and doped Rb2ZnCl4and K2ZnCl4 single crystals by Czochralski technique Type A1 Journal article
  Year 1999 Publication Journal of crystal growth Abbreviated Journal J Cryst Growth
  Volume 200 Issue 1-2 Pages (up) 148-154
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract High-quality single crystals of Rb2ZnCl4 and K2ZnCl4, pure or doped with Cu, Mn, Cd, Tl, Sn, Pb and In cations, were grown by Czochralski technique in argon atmosphere, using an experimental setup that allows direct visual access to the whole growth zone. Slowly cooled crystals exhibit excellent cleavage properties. Fastly cooled crystals do cleave poorly. As shown by X-ray diffraction studies, such K2ZnCl4 samples exhibit inclusions of the high-temperature Pmcn phase with lattice parameters a = 7.263(2) Angstrom, b = 12.562(2) Angstrom and c = 8.960(4) Angstrom in the P2(1) cn room temperature stable phase. ESR and optical spectroscopy studies revealed the localization and valence state of the cation dopants. (C) 1999 Elsevier Science B.V. All rights reserved.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Amsterdam Editor
  Language Wos 000079840600021 Publication Date 2002-07-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-0248; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.751 Times cited 13 Open Access
  Notes Approved Most recent IF: 1.751; 1999 IF: 1.492
  Call Number UA @ lucian @ c:irua:102909 Serial 1395
Permanent link to this record
 
 
Author Seo, J.W.; Schryvers, D.
  Title Defect structures in CuZr martensite, studies by CTEM and HRTEM Type A1 Journal article
  Year 1997 Publication Journal de physique: 4 Abbreviated Journal J Phys Iv
  Volume C5 Issue Pages (up) 149-154
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Les Ulis Editor
  Language Wos 000072520300024 Publication Date 2007-07-11
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1155-4339; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor Times cited 1 Open Access
  Notes Approved Most recent IF: NA
  Call Number UA @ lucian @ c:irua:21351 Serial 623
Permanent link to this record
 
 
Author Drozhzhin, O.A.; Sumanov, V.D.; Karakulina, O.M.; Abakumov, A.M.; Hadermann, J.; Baranov, A.N.; Stevenson, K.J.; Antipov, E.V.
  Title Switching between solid solution and two-phase regimes in the Li1-xFe1-yMnyPO4 cathode materials during lithium (de)insertion: combined PITT, in situ XRPD and electron diffraction tomography study Type A1 Journal article
  Year 2016 Publication Electrochimica acta Abbreviated Journal Electrochim Acta
  Volume 191 Issue 191 Pages (up) 149-157
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract The electrochemical properties and phase transformations during (de)insertion of Li+ in LiFePO4, LiFe0.9Mn0.1PO4 and LiFe0.5Mn0.5PO4 are studied by means of galvanostatic cycling, potential intermittent titration technique (PITT) and in situ X-ray powder diffraction. Different modes of switching between the solid solution and two-phase regimes are revealed which are influenced by the Mn content in Li1-xFe1-yMnyPO4. Additionally, an increase in electrochemical capacity with the Mn content is observed at high rates of galvanostatic cycling (10C, 20C), which is in good agreement with the numerically estimated contribution of the solid solution mechanism determined from PITT data. The observed asymmetric behavior of the phase transformations in Li1-xFe0.5Mn0.5PO4 during charge and discharge is discussed. For the first time, the crystal structures of electrochemically deintercalated Li1-xFe0.5Mn0.5PO4 with different Li content – LiFe0.5Mn0.5PO4, Li0.5Fe0.5Mn0.5PO4 and Li0.1Fe0.5Mn0.5PO4 – are refined, including the occupancy factors of the Li position. This refinement is done using electron diffraction tomography data. The crystallographic analyses of Li1-xFe0.5Mn0.5PO4 reveal that at x = 0.5 and 0.9 the structure retains the Pnma symmetry and the main motif of the pristine x = 0 structure without noticeable short range order effects.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000371143200018 Publication Date 2016-01-13
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0013-4686 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 4.798 Times cited 27 Open Access
  Notes This work was supported by the Russian Foundation of Basic Research (grants No. 14-29-04064 and 14-03-31473), Skolkovo Institute of Science and Technology, and the Lomonosov Moscow State University Program of Development. J. Hadermann, O. M. Karakulina and A. M. Abakumov acknowl- edge support from FWO under grant G040116N. Approved Most recent IF: 4.798
  Call Number c:irua:131911 Serial 4032
Permanent link to this record
 
 
Author Yao, X.
  Title An advanced TEM study on quantification of Ni4Ti3 precipitates in low temperature aged Ni-Ti shape memory alloy Type Doctoral thesis
  Year 2019 Publication Abbreviated Journal
  Volume Issue Pages (up) 149 p.
  Keywords Doctoral thesis; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date
  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 Most recent IF: NA
  Call Number UA @ admin @ c:irua:164987 Serial 6284
Permanent link to this record
 
 
Author Prabhakara, V.
  Title Strain measurement for semiconductor applications with Raman spectroscopy and Transmission electron microscopy Type Doctoral thesis
  Year 2021 Publication Abbreviated Journal
  Volume Issue Pages (up) 149 p.
  Keywords Doctoral thesis; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Scaling down the size of transistors has been a trend for several decades which has led to improved transistor performance, increased transistor density and hence the overall computation power of IC chips. The trend slowed in recent years due to reliability and power consumption issues at the nanoscale. Hence strain is introduced into transistor channels that has beneficial effects on improving the mobility of charge carriers, providing an alternative pathway for enhancing transistor performance. Therefore, monitoring strain is vital for the semiconductor industry. With the recent trend of decreasing device dimensions (FinFETS ~ 10-20nm) and strain modulation being used throughout, industry needs a reliable and fast method as quality control or defect characterisation. Such a universal strain measurement method does not exist, and one relies on a combination of quantitative in-line methods and complex off-line approaches. In this thesis, I investigated TEM and Raman spectroscopy-based methodologies for strain measurement. In terms of TEM methodologies, advancements are made for the STEM moiré imaging, targeting strain spatial resolution enhancement. I introduce advanced quadrature demodulation and phase stepping interferometry applied to STEM moiré that greatly enhances the spatial resolution while providing enhanced field of view and sensitivity for strain measurement. We introduce ways to reduce scan distortions in strain maps using an alternative scan strategy called “Block scanning” and the non-linear regression applied for strain extraction. Prospects for 3D strain analysis using high-resolution tomography is also investigated which gives direct access for the full second order strain tensors calculation. Finally, we compare strain measurements from TEM techniques with inline techniques like Raman spectroscopy. Raman stress measurement involves sensitive identification of the TO and LO phonon peaks. Raman spectrum of strained Ge transistor channel consists of strongly overlapping peaks within the spectral resolution of the spectrometer. Hence, the process of deconvolution of the two peaks is rather challenging. Hence, we explore new polarisation geometries like radially polarised incoming light which was shown to ease the deconvolution problem resulting in improved precision for Raman stress–strain measurements.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date
  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 Most recent IF: NA
  Call Number UA @ admin @ c:irua:182261 Serial 6847
Permanent link to this record
 
 
Author Poppe, R.
  Title Refining short-range order parameters from diffuse electron scattering Type Doctoral thesis
  Year 2023 Publication Abbreviated Journal
  Volume Issue Pages (up) iv, 150 p.
  Keywords Doctoral thesis; Electron microscopy for materials research (EMAT)
  Abstract Electrons, X-rays and neutrons that pass through a thin crystalline sample will be diffracted. Diffraction patterns of crystalline materials contain Bragg reflections (sharp discrete intensity maxima) and diffuse scattering (a weak continuous background). The Bragg reflections contain information about the average crystal structure (the type of atoms and the average atomic positions), whereas the diffuse scattering contains information about the short-range order (deviations from the average crystal structure that are ordered on a local scale). Because the properties of many materials depend on the short-range order, refining short-range order parameters is essential for understanding and optimizing material properties. The refinement of short-range order parameters has previously been applied to the diffuse scattering in single-crystal X-ray and single-crystal neutron diffraction data but not yet to the diffuse scattering in single-crystal electron diffraction data. In this work, we will verify the possibility to refine short-range order parameters from the diffuse scattering in single-crystal electron diffraction data. Electron diffraction allows to acquire data on submicron-sized crystals, which are too small to be investigated with single-crystal X-ray and single-crystal neutron diffraction. In the first part of this work, we will refine short-range order parameters from the one-dimensional diffuse scattering in electron diffraction data acquired on the lithium-ion battery cathode material Li1.2Ni0.13Mn0.54Co0.13O2. The number of stacking faults and the twin percentages will be refined from the diffuse scattering using a Monte Carlo refinement. We will also describe a method to determine the spinel/layered phase ratio from the intensities of the Bragg reflections in electron diffraction data. In the second part of this work, we will refine short-range order parameters from the three-dimensional diffuse scattering in both single-crystal electron and single-crystal X-ray diffraction data acquired on Nb0.84CoSb. The correlations between neighbouring vacancies and the displacements of Sb and Co atoms will be refined from the diffuse scattering using a Monte Carlo refinement and a three-dimensional difference pair distribution function refinement. The effect of different experimental parameters on the spatial resolution of the observed diffuse scattering will also be investigated. Finally, the model of the short-range Nb-vacancy order in Nb0.84CoSb will also be applied to LiNi0.5Sn0.3Co0.2O2.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos Publication Date
  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 Most recent IF: NA
  Call Number UA @ admin @ c:irua:200610 Serial 9084
Permanent link to this record
 
 
Author Rosenauer, A.; Schowalter, M.; Glas, F.; Lamoen, D.
  Title First-principles calculations of 002 structure factors for electron scattering in strained InxGa1-xAs Type A1 Journal article
  Year 2005 Publication Abbreviated Journal
  Volume 107 Issue Pages (up) 151-154
  Keywords A1 Journal article; Electron Microscopy for Materials Science (EMAT);
  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 0930-8989 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:72916 Serial 1202
Permanent link to this record
 
 
Author Kaltsas, G.; Travlos, A.; Nassiopoulos, A.G.; Frangis, N.; van Landuyt, J.
  Title High crystalline quality erbium silicide films on (100) silicon grown in high vacuum Type A1 Journal article
  Year 1996 Publication Applied surface science Abbreviated Journal Appl Surf Sci
  Volume 102 Issue Pages (up) 151-155
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Amsterdam Editor
  Language Wos A1996VJ86100034 Publication Date 2003-05-12
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0169-4332; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.711 Times cited 14 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:15459 Serial 1423
Permanent link to this record
 
 
Author Goessens, C.; Schryvers, D.; van Landuyt, J.; de Keyzer, R.
  Title In situ HREM study of electron irradiation effects in AgCl microcrystals Type A1 Journal article
  Year 1992 Publication Ultramicroscopy Abbreviated Journal Ultramicroscopy
  Volume 40 Issue Pages (up) 151-162
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Amsterdam Editor
  Language Wos A1992HN13400005 Publication Date 2002-10-18
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0304-3991; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.436 Times cited 10 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:4094 Serial 1581
Permanent link to this record
 
 
Author Nistor, L.C.; Van Tendeloo, G.; Amelinckx, S.
  Title Defects and phase transformation in monclinic natural hollandite: BaxMn8O16 Type A1 Journal article
  Year 1994 Publication Journal of solid state chemistry Abbreviated Journal J Solid State Chem
  Volume 109 Issue Pages (up) 152-165
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos A1994MY48800024 Publication Date 0000-00-00
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-4596 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.133 Times cited 13 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:10023 Serial 626
Permanent link to this record
 
 
Author Nistor, L.C.; Van Tendeloo, G.; Amelinckx, S.
  Title Defects and phase transition in monoclinic natural hollandite : BaxMn8O16 Type A1 Journal article
  Year 1994 Publication Journal of solid state chemistry Abbreviated Journal J Solid State Chem
  Volume 109 Issue 1 Pages (up) 152-165
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos A1994MY48800024 Publication Date 2002-10-07
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0022-4596; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.133 Times cited 13 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:99918 Serial 627
Permanent link to this record
 
 
Author Feld, A.; Weimer, A.; Kornowski, A.; Winckelmans, N.; Merkl, J.-P.; Kloust, H.; Zierold, R.; Schmidtke, C.; Schotten, T.; Riedner, M.; Bals, S.; Weller, P.D., Horst
  Title Chemistry of Shape-Controlled Iron Oxide Nanocrystal Formation Type A1 Journal article
  Year 2018 Publication ACS nano Abbreviated Journal Acs Nano
  Volume 13 Issue 13 Pages (up) 152-162
  Keywords A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
  Abstract Herein we demonstrate that meticulous and in-depth analysis of the reaction mechanisms of nanoparticle formation is rewarded by full control of size, shape and crystal structure of superparamagnetic iron oxide nanocrystals during synthesis. Starting from two iron sources – iron(II)- and iron(III) carbonate -a strict separation of oleate formation from the generation of reactive pyrolysis products and concomitant nucleation of iron oxide nanoparticles was achieved. This protocol enabled us to analyze each step of nanoparticle formation independently in depth. Progress of the entire reaction was monitored via matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and gas chromatography (GC) gaining insight into the formation of various iron oleate species prior to nucleation. Interestingly, due to the intrinsic strongly reductive pyrolysis conditions of the oleate intermediates and redox process in early stages of the synthesis, pristine iron oxide nuclei were composed exclusively from wustite, irrespective of the oxidation state of the iron source. Controlling the reaction conditions provided a very broad range of size- and shape defined monodisperse iron oxide nanoparticles. Curiously, after nucleation star shaped nanocrystals were obtained, which underwent metamorphism towards cubic shaped particles. EELS tomography revealed ex post oxidation of the primary wustite nanocrystal providing a full 3D image of Fe2+ and Fe3+ distribution within. Overall, we developed a highly flexible synthesis, yielding multigram amounts of well-defined iron oxide nanocrystals of different sizes and morphologies.
  Address
  Corporate Author Thesis
  Publisher Place of Publication Editor
  Language Wos 000456749900017 Publication Date 2018-12-12
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1936-0851 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 13.942 Times cited 54 Open Access OpenAccess
  Notes The authors gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Projektnummer 192346071 – SFB 986 and the excellence cluster ‘The Hamburg Centre for Ultrafast Imaging – Structure, Dynamics and Control of Matter at the Atomic Scale’ (by grant EXC 1074) S.B. and N.W. acknowledge financial support from European Research Council (ERC Starting Grant #335078-COLOURATOMS) and from the Research Foundation Flanders (FWO, Belgium) through Project fundings G038116N. Dr. Volker Sauerland for his support in calibrating the MALDI-TOF spectra. Almut Bark for measuring XRD (ROMEO:white; preprint:; postprint:restricted 12 months embargo; pdfversion:cannot); ecas_sara Approved Most recent IF: 13.942
  Call Number EMAT @ emat @c:irua:155716UA @ admin @ c:irua:155716 Serial 5073
Permanent link to this record
 
 
Author Vernimmen, J.; Meynen, V.; Mertens, M.; Lebedev, O.I.; Van Tendeloo, G.; Cool, P.
  Title Formation of a Ti-siliceous trimodal material with macroholes, mesopores and zeolitic features via a one-pot templating synthesis Type A1 Journal article
  Year 2012 Publication Journal of porous materials Abbreviated Journal J Porous Mat
  Volume 19 Issue 2 Pages (up) 153-160
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Laboratory of adsorption and catalysis (LADCA)
  Abstract Based on a facile one-pot templating synthesis, using a TS-1 zeolite recipe whereby part of the zeolite structure directing agent is replaced by a mesopore templating agent, a trimodal material is formed. The resulting meso-TSM material combines mesoporosity (Ti-MCM-41) with zeolitic features (TS-1) and a unique sheet-like morphology with uniform macroporous voids (macroholes). Moreover, the macrohole formation, mesoporosity and zeolitic properties of the meso-TSM material can be controlled in a straightforward way by adjusting the length of the hydrothermal treatment. This newly developed material may imply great potential for catalytic redox applications and diffusion limitated processes because of its highly tunable character in all three dimensions (micro-, meso- and macroporous scale).
  Address
  Corporate Author Thesis
  Publisher Kluwer Academic Place of Publication Boston, Mass. Editor
  Language Wos 000301187600002 Publication Date 2011-03-28
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1380-2224;1573-4854; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.624 Times cited 2 Open Access
  Notes Fwo; Goa Approved Most recent IF: 1.624; 2012 IF: 1.348
  Call Number UA @ lucian @ c:irua:88367 Serial 1257
Permanent link to this record
 
 
Author Goessens, C.; Schryvers, D.; van Landuyt, J.; Amelinckx, S.; de Keyzer, R.
  Title Long period surface ordering of iodine ions in mixed tabular AgBr-AgBrI microcrystals Type A1 Journal article
  Year 1995 Publication Surface science : a journal devoted to the physics and chemistry of interfaces Abbreviated Journal Surf Sci
  Volume 337 Issue Pages (up) 153-165
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Amsterdam Editor
  Language Wos A1995RQ74900024 Publication Date 2003-05-13
  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 10 Open Access
  Notes Approved no
  Call Number UA @ lucian @ c:irua:13162 Serial 1836
Permanent link to this record
 
 
Author van Dyck, D.; Van Aert, S.; den Dekker, A.J.
  Title Physical limits on atomic resolution Type A1 Journal article
  Year 2004 Publication Microscopy and microanalysis Abbreviated Journal Microsc Microanal
  Volume 10 Issue Pages (up) 153-157
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Cambridge, Mass. Editor
  Language Wos 000188882100022 Publication Date 2004-08-11
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 1431-9276;1435-8115; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 1.891 Times cited 14 Open Access
  Notes Approved Most recent IF: 1.891; 2004 IF: 2.389
  Call Number UA @ lucian @ c:irua:47515 Serial 2616
Permanent link to this record
 
 
Author Oleynikov, P.N.; Shpanchenko, R.V.; Rozova, M.G.; Abakumov, A.M.; Antipov, E.V.; Hadermann, J.; Lebedev, O.I.; Van Tendeloo, G.
  Title Synthesis and structure of fluorinated RBa2Cu2O6+. (R=Dy, Ho and Tm) phases Type A1 Journal article
  Year 2001 Publication Russian journal of inorganic chemistry Abbreviated Journal Russ J Inorg Chem+
  Volume 46 Issue 2 Pages (up) 153-158
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication London Editor
  Language Wos Publication Date 0000-00-00
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0036-0236 ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 0.787 Times cited Open Access
  Notes Approved Most recent IF: 0.787; 2001 IF: NA
  Call Number UA @ lucian @ c:irua:36045 Serial 3443
Permanent link to this record
 
 
Author Udoh, K.-I.; El- Araby, A.M.; Tanaka, Y.; Hisatsune, K.; Yasuda, K.; Van Tendeloo, G.; van Landuyt, J.
  Title Structural aspects of AuCu I or AuCu II and a cuboidal black configuration of f.c.c. disordered phase in AuCu-Pt and AuCu-Ag pseudobinary alloys Type A1 Journal article
  Year 1995 Publication Materials science and engineering: part A: structural materials: properties, microstructure and processing Abbreviated Journal Mat Sci Eng A-Struct
  Volume 203 Issue Pages (up) 154-164
  Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
  Abstract
  Address
  Corporate Author Thesis
  Publisher Place of Publication Lausanne Editor
  Language Wos A1995TM62800016 Publication Date 2002-07-25
  Series Editor Series Title Abbreviated Series Title
  Series Volume Series Issue Edition
  ISSN 0921-5093; ISBN Additional Links UA library record; WoS full record; WoS citing articles
  Impact Factor 2.567 Times cited 15 Open Access
  Notes Approved
  Call Number UA @ lucian @ c:irua:13298 Serial 3205
Permanent link to this record
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