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Author (down) Nistor, S.V.; Stefan, M.; Nistor, L.C.; Goovaerts, E.; Van Tendeloo, G.
Title Incorporation and localization of substitutional Mn2+ ions in cubic ZnS quantum dots Type A1 Journal article
Year 2010 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 81 Issue 3 Pages 035336,1-035336,6
Keywords A1 Journal article; Nanostructured and organic optical and electronic materials (NANOrOPT); Electron microscopy for materials research (EMAT)
Abstract Multifrequency electron paramagnetic resonance (EPR) and high resolution transmission electron microscopy (HRTEM) investigations were performed on small (2 nm) cubic ZnS nanocrystals (quantum dotsQDs) doped with 0.2% mol Mn2+, self-assembled into a mesoporous structure. The EPR data analysis shows that the substitutional Mn2+ ions are localized at Zn2+ sites subjected to a local axial lattice distortion, resulting in the observed zero-field-splitting parameter |D|=41×10−4 cm−1. The local distortion is attributed to the presence in the second shell of ligands of a stacking fault or twin, which alters the normal stacking sequence of the cubic structure. The HRTEM results confirm the presence of such extended planar defects in a large percentage of the investigated QDs, which makes possible the proposed substitutional Mn2+ impurity ions localization model. Based on these results it is suggested that the high doping levels of Mn2+ ions observed in cubic ZnS and possible in other II-VI semiconductor QDs prepared at low temperatures can be explained by the assistance of the extended lattice defects in the impurities incorporation.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000277970900007 Publication Date 2010-01-29
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 55 Open Access
Notes Fwo Approved Most recent IF: 3.836; 2010 IF: 3.774
Call Number UA @ lucian @ c:irua:83649 Serial 1597
Permanent link to this record
 
 
Author (down) Nistor, L.C.; Van Tendeloo, G.; Dincã, G.
Title Crystallographic aspects related to the high pressure-high temperature phase transformation of boron nitride Type A1 Journal article
Year 2005 Publication Philosophical magazine Abbreviated Journal Philos Mag
Volume 85 Issue 11 Pages 1145-1158
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication London Editor
Language Wos 000227675400003 Publication Date 2007-07-08
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1478-6435;1478-6443; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.505 Times cited 13 Open Access
Notes Bil 01/73; Iap V-1 Approved Most recent IF: 1.505; 2005 IF: 1.470
Call Number UA @ lucian @ c:irua:54756 Serial 587
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Author (down) Nistor, L.C.; Van Tendeloo, G.; Dincã, G.
Title HRTEM studies of dislocations in cubic BN Type A1 Journal article
Year 2004 Publication Physica status solidi: A: applied research Abbreviated Journal Phys Status Solidi A
Volume 201 Issue 11 Pages 2578-2582
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Berlin Editor
Language Wos 000224152700034 Publication Date 2004-09-14
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 8 Open Access
Notes Approved Most recent IF: NA
Call Number UA @ lucian @ c:irua:54849 Serial 1516
Permanent link to this record
 
 
Author (down) 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 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 (down) 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 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 (down) Nistor, L.C.; van Landuyt, J.; Ralchenko, V.G.; Obratzova, E.D.; Smolin, A.A.
Title Nanocrystalline diamond films: transmission electron microscopy and Raman spectroscopy characterization Type A1 Journal article
Year 1997 Publication Diamond and related materials Abbreviated Journal Diam Relat Mater
Volume 6 Issue Pages 159-168
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1997WN37300021 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0925-9635 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.561 Times cited 116 Open Access
Notes Approved Most recent IF: 2.561; 1997 IF: 1.758
Call Number UA @ lucian @ c:irua:21406 Serial 2249
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Author (down) Nistor, L.C.; van Landuyt, J.; Ralchenko, V.G.; Obratzova, E.D.; Korothushenko, K.G.; Smolin, A.A.
Title Structural studies of nanocrystalline diamond thin films Type A1 Journal article
Year 1997 Publication Materials science forum Abbreviated Journal
Volume 239-241 Issue Pages 115-118
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Lausanne Editor
Language Wos A1997BH33W00026 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0255-5476; 1662-9752 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:21403 Serial 3260
Permanent link to this record
 
 
Author (down) Nistor, L.C.; van Landuyt, J.; Ralchenko, V.G.; Kononenko, T.V.; Obraztsova, E.D.; Strelnitsky, V.E.
Title Direct observation of laser-induced crystallization of a-C : H films Type A1 Journal article
Year 1994 Publication Applied physics A : materials science & processing Abbreviated Journal
Volume 58 Issue 2 Pages 137-144
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The post-growth modification of diamond-like amorphous hydrogenated carbon a-C:H films by laser treatment has been studied by transmission electron microscopy and Raman spectroscopy. a-C:H films grown on Si substrates by benzene decomposition in a rf glow discharge were irradiated with 15 ns pulses of a KrF-excimer laser with fluences in the ran e of E = 50-700 mJ/cm(2). At fluences below 100 mJ/cm(2) an increase in the number of graphitic clusters and in their ordering was evidenced from Raman spectra, while the film structure remained amorphous according to electron microscopy and electron diffraction observations. At higher fluences the appearance of diamond particles of 2-7 nm size, embedded into the lower crystallized graphitic matrix, was observed and simultaneously a progressive growth of graphite nanocrystals with dimensions from 2 nm to 4 nm was deduced from Raman measurements. The maximum thickness of the crystallized surface layer (approximate to 400 nm) and the degree of laser annealing are limited by the film ablation which starts at E > 250 mJ/cm(2). The laser-treated areas lose their chemical inertness. In particular, chemical etching in chromium acid becomes possible, which may be used for patterning the highly inert carbon films.
Address
Corporate Author Thesis
Publisher Place of Publication Heidelberg Editor
Language Wos A1994MU87700005 Publication Date 2004-10-24
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0721-7250;1432-0630; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited 73 Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:99924 Serial 718
Permanent link to this record
 
 
Author (down) Nistor, L.C.; van Landuyt, J.; Ralchenko, V.G.; Kononenko, T.V.; Obraztsova, E.D.; Strelnitsky, V.E.
Title Formation of diamond nanocrystals in laser-irradiated amorphous carbon films Type P3 Proceeding
Year 1994 Publication International Conference on the New Diamond Science and Technology Abbreviated Journal
Volume 4 Issue Pages 25-29
Keywords P3 Proceeding; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication 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:10059 Serial 1259
Permanent link to this record
 
 
Author (down) Nistor, L.C.; van Landuyt, J.; Dincã, G.
Title HREM of defects in cubic boron nitride single crystals Type P1 Proceeding
Year 1998 Publication Abbreviated Journal
Volume Issue Pages 695-696
Keywords P1 Proceeding; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Cancun Editor
Language Wos 000077019900341 Publication Date 0000-00-00
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:29679 Serial 1508
Permanent link to this record
 
 
Author (down) Nistor, L.C.; van Landuyt, J.; Barton, J.D.; Hole, D.E.; Skelland, N.D.; Townsend, P.D.
Title Colloid size distributions in ion implanted glass Type A1 Journal article
Year 1993 Publication Journal of non-crystalline solids Abbreviated Journal J Non-Cryst Solids
Volume 162 Issue Pages 217-224
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos A1993LY37100002 Publication Date 2003-06-21
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0022-3093; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.766 Times cited 63 Open Access
Notes Approved INSTRUMENTS & INSTRUMENTATION 31/56 Q3 # NUCLEAR SCIENCE & TECHNOLOGY 9/32 Q2 # PHYSICS, PARTICLES & FIELDS 24/28 Q4 # SPECTROSCOPY 28/43 Q3 #
Call Number UA @ lucian @ c:irua:6787 Serial 389
Permanent link to this record
 
 
Author (down) Nistor, L.C.; van Landuyt, J.
Title Structural studies of diamond thin films grown from the arc plasma Type A1 Journal article
Year 1998 Publication Journal of materials research Abbreviated Journal J Mater Res
Volume 12 Issue 10 Pages 2533-2542
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication New York, N.Y. Editor
Language Wos A1997YD17000007 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0884-2914 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 1.673 Times cited 13 Open Access
Notes Approved Most recent IF: 1.673; 1998 IF: 1.539
Call Number UA @ lucian @ c:irua:29674 Serial 3259
Permanent link to this record
 
 
Author (down) Nistor, L.C.; Richard, O.; Zhao, O.; Bender, H.; Stesmans, A.; Van Tendeloo, G.
Title A microstructural study of the thermal stability of atomic layer deposited Al2O3 thin films Type A1 Journal article
Year 2003 Publication Institute of physics conference series T2 – Microscopy of semiconducting materials Abbreviated Journal
Volume Issue Pages 397-400
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The thermal stability of amorphous Al2O3 films (similar to8 and 80 nut thick) deposited by atomic layer deposition on HF-last and thin SiO2 covered (001) Si substrates is studied by transmission electron microscopy. The layers are in- and ex-situ annealed in the same temperature range.
Address
Corporate Author Thesis
Publisher Iop Place of Publication Cambridge Editor
Language Wos Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0-7503-0979-2 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:54860 Serial 2048
Permanent link to this record
 
 
Author (down) Nistor, L.C.; Richard, O.; Zhao, C.; Bender, H.; Van Tendeloo, G.
Title Thermal stability of atomic layer deposited Zr:Al mixed oxide thin films: an in situ transmission electron microscopy study Type A1 Journal article
Year 2005 Publication Journal of materials research Abbreviated Journal J Mater Res
Volume 20 Issue 7 Pages 1741-1750
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication New York, N.Y. Editor
Language Wos 000230296100012 Publication Date 2005-07-12
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0884-2914;2044-5326; ISBN Additional Links UA library record; WoS full record
Impact Factor 1.673 Times cited Open Access
Notes Bil 01/73; IAP V-1 Approved Most recent IF: 1.673; 2005 IF: 2.104
Call Number UA @ lucian @ c:irua:54884 Serial 3631
Permanent link to this record
 
 
Author (down) Nistor, L.C.; Nistor, S.V.; Dinca, G.; Georgeoni, P.; van Landuyt, J.; Manfredotti, C.; Vittone, E.
Title Microstructure and spectroscopy studies on cubic boron nitride synthesized under high-pressure conditions Type A1 Journal article
Year 2002 Publication Journal of physics : condensed matter Abbreviated Journal J Phys-Condens Mat
Volume 14 Issue 44 Pages 10983-10988
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract High-resolution electron microscopy (HREM) studies of the microstructure and specific defects in hexagonal boron nitride (h-BN) precursors and cubic boron nitride (c-BN) crystals made under high-pressure high-temperature conditions revealed the presence of half-nanotubes at the edges of the h-BN particles. Their sp(3) bonding tendency could strongly influence the nucleation rates of c-BN. The atomic resolution at extended dislocations was insufficient to allow us to determine the stacking fault energy in the c-BN crystals. Its mean value of 191 +/- 15 mJ m(-2) is of the same order of magnitude as that of diamond. High-frequency (94 GHz) electron paramagnetic resonance studies on c-BN single crystals have produced new data on the D1 centres associated with the boron species. Ion-beam-induced luminescence measurements have indicated that c-BN is a very interesting luminescent material, which is characterized by four luminescence bands and exhibits a better resistance to ionizing radiation than CVD diamond.
Address
Corporate Author Thesis
Publisher Place of Publication London Editor
Language Wos 000179541700114 Publication Date 2002-10-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0953-8984; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.649 Times cited 7 Open Access
Notes Approved Most recent IF: 2.649; 2002 IF: 1.775
Call Number UA @ lucian @ c:irua:103328 Serial 2061
Permanent link to this record
 
 
Author (down) Nistor, L.C.; Ghica, C.; Van Tendeloo, G.
Title Mesoseopic ordering in the 0.9 Pb(Mg1/3Nb2/3)O3-0.1 PbTiO3 relaxor ferroelectric : a HRTEM study Type A1 Journal article
Year 2007 Publication Physica status solidi: C: conferences and critical reviews Abbreviated Journal
Volume 4 Issue 3 Pages 736-739
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract We report a microstructural and compositional study of a 90% Pb(Mg1/3Nb2/3)O-3 – 10% PbTiO3 ceramic sample. High resolution transmission electron microscopy (HRTEM) revealed the presence of compositional ordered nano-domains (1 – 4 mn), observable in two specific orientations, [0 (1) over bar 1] and [1 1 (2) over bar]. However, the visibility and the ordering degree of the nano-domains on the HRTEM images are not at all obvious. Fourier filtering of the images clearly revealed the ordered domains. Antiphase boundaries lying in the (111) planes separate them, while (100) and (111) facets separate the ordered domains from the disordered matrix. Their shape is plate-like, not uniformly spread in the disordered matrix. Their average size varies in different regions of the sample, most probably due to a non-uniform distribution of Ti, as observed by energy dispersive X-ray spectroscopy. (c) 2007 WILEY-VCH Verlag GmbH Co. KGaA, Weinheim.
Address
Corporate Author Thesis
Publisher Place of Publication Berlin Editor
Language Wos 000246104300008 Publication Date 2007-03-07
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1610-1634;1610-1642; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor Times cited 2 Open Access
Notes Approved Most recent IF: NA
Call Number UA @ lucian @ c:irua:94663 Serial 2004
Permanent link to this record
 
 
Author (down) Nistor, L.C.; Ghica, C.; Matei, D.; Dinescu, G.; Dinescu, M.; Van Tendeloo, G.
Title Growth and characterization of a-axis textured ZnO thin films Type A1 Journal article
Year 2005 Publication Journal of crystal growth Abbreviated Journal J Cryst Growth
Volume 277 Issue Pages 26-31
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos 000228737900005 Publication Date 2005-02-02
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 44 Open Access
Notes Bil 01/73 Approved Most recent IF: 1.751; 2005 IF: 1.681
Call Number UA @ lucian @ c:irua:54787 Serial 1390
Permanent link to this record
 
 
Author (down) Nistor, L.; Van Tendeloo, G.; Amelinckx, S.; Shpanchenko, R.V.; van Landuyt, J.
Title Ordering and defects in BanTaxTiyO3n ternary oxides Type P1 Proceeding
Year 1994 Publication Electron Microscopy 1994, Vols 2a And 2b: Applications In Materials Sciences Abbreviated Journal
Volume Issue Pages 869-870
Keywords P1 Proceeding; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos A1994BE09Y00422 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2-86883-226-1 ISBN Additional Links UA library record; WoS full record;
Impact Factor Times cited Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:104477 Serial 2504
Permanent link to this record
 
 
Author (down) Nistor, L.; Van Tendeloo, G.; Amelinckx, S.; Kahlenberg, V.; Böhm, H.
Title In situ study of the phase transition in Bi2Ti4O11 Type A1 Journal article
Year 1995 Publication Journal of solid state chemistry Abbreviated Journal J Solid State Chem
Volume 119 Issue Pages 281-288
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication London Editor
Language Wos A1995TC99800008 Publication Date 2003-01-09
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 10 Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:13325 Serial 1584
Permanent link to this record
 
 
Author (down) Nistor, L.; Van Tendeloo, G.; Amelinckx, S.; Cros, C.
Title Atomic imaging of cage like structures of silicon Type A1 Journal article
Year 1994 Publication Physica status solidi: A: applied research Abbreviated Journal
Volume 146 Issue Pages 119-132
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Berlin Editor
Language Wos A1994PV89500010 Publication Date 2007-01-13
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 12 Open Access
Notes Approved no
Call Number UA @ lucian @ c:irua:10043 Serial 167
Permanent link to this record
 
 
Author (down) Nistor, L.; Van Tendeloo, G.; Amelinckx, S.
Title The paraelectric-ferroelectric phase transition of Bi4Ti3O12 studied by electron microscopy Type A1 Journal article
Year 1996 Publication Phase transitions Abbreviated Journal Phase Transit
Volume 59 Issue Pages 135-153
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication New York Editor
Language Wos A1996WL56200010 Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0141-1594 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 0.954 Times cited 6 Open Access
Notes Approved COMPUTER SCIENCE, INTERDISCIPLINARY 11/104 Q1 # PHYSICS, MATHEMATICAL 1/53 Q1 #
Call Number UA @ lucian @ c:irua:16870 Serial 2551
Permanent link to this record
 
 
Author (down) Nistor, L.; van Landuyt, J.; Ralchenko, V.
Title Structural aspects of CVD idamond wafers grown at different hydrogen flow rates Type A1 Journal article
Year 1999 Publication Physica status solidi: A: applied research Abbreviated Journal Phys Status Solidi A
Volume 171 Issue Pages 5-10
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Berlin Editor
Language Wos 000081733800007 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 15 Open Access
Notes Approved Most recent IF: NA
Call Number UA @ lucian @ c:irua:29688 Serial 3207
Permanent link to this record
 
 
Author (down) Nistor, L.; Teodorescu, V.; Ghica, C.; van Landuyt, J.; Dinca, G.; Georgeoni, P.
Title The influence of the h-BN morphology and structure on the c-BN growth Type A1 Journal article
Year 2001 Publication Diamond and related materials T2 – 11th European Conference on Diamond, Diamond-like Materials, Carbon, Nanotubes, Nitrides and Silicon Carbide (Diamond 2000), SEP 03-08, 2000, OPORTO, PORTUGAL Abbreviated Journal Diam Relat Mater
Volume 10 Issue 3-7 Pages 1352-1356
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The morphology and structure of hexagonal graphitic BN (h-BN) powders with graphitization indices GI <5, used as precursors for the synthesis of cubic BN (c-BN) crystals, has been investigated by transmission electron microscopy in diffraction contrast and high resolution. We show that besides the GI, which is a general parameter for controlling the structural quality of h-EN ponders, some other microstructural features strongly influence the synthesis of c-BN. In our opinion, the high reactivity of some h-BN powders results from the presence of some nucleation centers for c-BN, observed at the edges of the h-BN particles. They are formed by a rearrangement of the graphitic (0002) planes by bending back, joining in pairs and forming locally nanoarches (half nanotubes). In these particular places, the nature of bonding locally turns towards sp(3), as in the case of c-BN, (C) 2001 Elsevier Science B.V. All rights reserved.
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos 000168730600206 Publication Date 2002-10-14
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0925-9635; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.561 Times cited 17 Open Access
Notes Approved Most recent IF: 2.561; 2001 IF: 1.902
Call Number UA @ lucian @ c:irua:103421 Serial 3586
Permanent link to this record
 
 
Author (down) Nistor, L.; Nistor, S.V.; Dincã, G.; van Landuyt, J.; Schoemaker, D.; Copaciu, V.; Georgeoni, P.; Arnici, N.
Title High resolution electron microscopy and electron spin resonance studies on cubic boron nitride crystals made by high-pressure/high-temperature synthesis Type A1 Journal article
Year 1999 Publication Diamonds an related materials Abbreviated Journal Diam Relat Mater
Volume 8 Issue Pages 738-742
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000080437000123 Publication Date 2002-07-25
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0925-9635; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.561 Times cited 7 Open Access
Notes Approved Most recent IF: 2.561; 1999 IF: 1.924
Call Number UA @ lucian @ c:irua:27519 Serial 1445
Permanent link to this record
 
 
Author (down) Nistor, L.; Buschmann, V.; Ralchenko, V.; Dinca, G.; Vlasov, I.; van Landuyt, J.; Fuess, H.
Title Microstructural characterization of diamond films deposited on c-BN crystals Type A1 Journal article
Year 2000 Publication Diamond and related materials T2 – 10th European Conference on Diamond, Diamond-Like Materials, Nitrides, and Silicon Carbide (Diamond 1999), SEP 12-17, 1999, PRAGUE, CZECH REPUBLIC Abbreviated Journal Diam Relat Mater
Volume 9 Issue 3-6 Pages 269-273
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The morphology and structure of diamond films, deposited on cubic boron nitride (c-BN) crystals by microwave-plasma-enhanced chemical vapor deposition, is studied by high-resolution scanning electron microscopy and micro-Raman spectroscopy. The c-BN crystals, with sizes of 200 to 350 mu m and grown by a high-temperature/high-pressure technique, were embedded in a copper holder, and used as substrates in deposition runs of 15 min to 5 h. The nucleation centers for diamond appear as well-shaped cuboctahedral crystallites, having diameters of approximately 100 nm. With increasing deposition time the diamond crystallites grew larger, forming islands on the c-BN faces. In some cases, epitaxial growth was observed on the (111) c-BN faces where coalesced particles gave rise to very smooth regions. A number of diamond crystals with peculiar shapes are observed, such as a pseudo five-fold symmetry due to multiple twinning. Moreover, both randomly distributed carbon tubes, about 100 nn in diameter and 1 mu m in length, and spherically shaped features are observed in samples prepared under the typical conditions of diamond deposition, this effect being ascribed to the influence of plasma-sputtered copper contamination. Quite unusual diamond crystals with a deep, pyramidal-shaped hole in the middle grew on the copper substrate between the c-BN crystals. (C) 2000 Elsevier Science S.A. All rights reserved.
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos 000087382400009 Publication Date 2002-07-26
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0925-9635; ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.561 Times cited 9 Open Access
Notes Approved Most recent IF: 2.561; 2000 IF: 1.591
Call Number UA @ lucian @ c:irua:102877 Serial 2041
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Author (down) Nistor, L.; Bender, H.; Vantomme, A.; Wu, M.F.; van Landuyt, J.; O'Donnell, K.P.; Martin, R.; Jacobs, K.; Moerman, I.
Title Direct evidence of spontaneous quantum dot formation in a thick InGaN epilayer Type A1 Journal article
Year 2000 Publication Applied physics letters Abbreviated Journal Appl Phys Lett
Volume 77 Issue 4 Pages 507-509
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract We report a direct observation of quantum dots formed spontaneously in a thick InGaN epilayer by high resolution transmission electron microscopy. Investigation of a (280 nm thick) In0.22Ga0.78N single layer, emitting in the blue/green spectral region, reveals quantum dots with estimated sizes in the range of 1.5-3 nm. Such sizes are in very good agreement with calculations based on the luminescence spectra of this specimen. (C) 2000 American Institute of Physics. [S0003-6951(00)00930-X].
Address
Corporate Author Thesis
Publisher American Institute of Physics Place of Publication New York, N.Y. Editor
Language Wos 000088225400016 Publication Date 2002-07-26
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 44 Open Access
Notes Approved Most recent IF: 3.411; 2000 IF: 3.906
Call Number UA @ lucian @ c:irua:103448 Serial 712
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Author (down) Nistor, L.; Bender, H.; van Landuyt, J.; Nemeth, S.; Boeve, H.; De Boeck, J.; Borghs, G.
Title HREM investigation of a Fe/GaN/Fe tunnel junction Type A1 Journal article
Year 2001 Publication Institute of physics conference series T2 – Royal-Microscopical-Society Conference on Microscopy of Semiconducting, Materials, MAR 25-29, 2001, Univ of Oxford, Oxford, England Abbreviated Journal
Volume Issue 169 Pages 53-56
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract The structure of Fe/GaN/Fe ferromagnetic electrodes is studied by high resolution transmission electron microscopy. The layers grow epitaxially on the GaAs substrate with the top Fe layer 90degrees rotated compared to the bottom one. The interfaces are quite rough. There is an indication of the possible occurrence of Fe3GaAs formation on the GaAs interface.
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Corporate Author Thesis
Publisher IOP Publishing Place of Publication Bristol Editor
Language Wos Publication Date 0000-00-00
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0-7503-0818-4 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:95715 Serial 1503
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Author (down) Nishio, K.; Lu, A.K.A.; Pourtois, G.
Title Low-strain Si/O superlattices with tunable electronic properties : ab initio calculations Type A1 Journal article
Year 2015 Publication Physical review : B : condensed matter and materials physics Abbreviated Journal Phys Rev B
Volume 91 Issue 91 Pages 165303
Keywords A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract We propose that low-strain Si/O superlattices can be constructed by connecting reconstructed Si{001} surfaces by Si-O-Si bridges. Ab initio calculations show that our models are energetically more favorable than all the models proposed so far. The part of our Si/O superlattice model is experimentally accessible just by oxidizing a Si( 001) substrate. To complete our Si/O superlattice model, we propose a three-step method. We also explore the potential of our Si/O superlattice models for new materials used in future Si electronics. We find that the location of the channel where the carriers travel can be controlled between the interfaces and the Si layers by the insertion of O atoms into the Si-Si dimers. By revealing the origins of the interface electron and hole states, we find that similar interface states should be easily achieved for Si slabs and Si substrates. Interestingly, the interface electrons and holes have small effective masses in the direction parallel to the channel and large effective masses in the direction normal to the channel, which makes the Si/O superlattices attractive to be used for channel materials. We also find that the valley splitting of Si is enhanced by the formation of the Si/O/Si interfaces, which is ideal for developing Si-based qubits. Our findings open new perspectives to design and control the electronic properties of Si.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000352986700002 Publication Date 2015-04-16
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 6 Open Access
Notes Approved Most recent IF: 3.836; 2015 IF: 3.736
Call Number c:irua:125998 Serial 1852
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Author (down) Ning, Y.; Zhang, X.; Wang, Y.; Sun, Y.; Shen, L.; Yang, X.; Van Tendeloo, G.
Title Bulk production of multi-wall carbon nanotube bundles on sol-gel prepared catalyst Type A1 Journal article
Year 2002 Publication Chemical physics letters Abbreviated Journal Chem Phys Lett
Volume 366 Issue 5/6 Pages 555-560
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Amsterdam Editor
Language Wos 000179484300017 Publication Date 2002-12-03
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 41 Open Access
Notes Approved Most recent IF: 1.815; 2002 IF: 2.526
Call Number UA @ lucian @ c:irua:54776 Serial 262
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Author (down) Ning, S.; Xu, W.; Ma, Y.; Loh, L.; Pennycook, T.J.; Zhou, W.; Zhang, F.; Bosman, M.; Pennycook, S.J.; He, Q.; Loh, N.D.
Title Accurate and Robust Calibration of the Uniform Affine Transformation Between Scan-Camera Coordinates for Atom-Resolved In-Focus 4D-STEM Datasets Type A1 Journal article
Year 2022 Publication Microscopy and microanalysis Abbreviated Journal Microsc Microanal
Volume Issue Pages 1-11
Keywords A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract Accurate geometrical calibration between the scan coordinates and the camera coordinates is critical in four-dimensional scanning transmission electron microscopy (4D-STEM) for both quantitative imaging and ptychographic reconstructions. For atomic-resolved, in-focus 4D-STEM datasets, we propose a hybrid method incorporating two sub-routines, namely a J-matrix method and a Fourier method, which can calibrate the uniform affine transformation between the scan-camera coordinates using raw data, without a priori knowledge about the crystal structure of the specimen. The hybrid method is found robust against scan distortions and residual probe aberrations. It is also effective even when defects are present in the specimen, or the specimen becomes relatively thick. We will demonstrate that a successful geometrical calibration with the hybrid method will lead to a more reliable recovery of both the specimen and the electron probe in a ptychographic reconstruction. We will also show that, although the elimination of local scan position errors still requires an iterative approach, the rate of convergence can be improved, and the residual errors can be further reduced if the hybrid method can be firstly applied for initial calibration. The code is made available as a simple-to-use tool to correct affine transformations of the scan-camera coordinates in 4D-STEM experiments.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Wos 000767045700001 Publication Date 2022-03-09
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1431-9276 ISBN Additional Links UA library record; WoS full record; WoS citing articles
Impact Factor 2.8 Times cited Open Access OpenAccess
Notes N. D. Loh kindly acknowledges support from NUS Early Career Research Award (R-154-000-B35-133), MOE’s AcRF Tier 1 grant nr. R-284-000-172-114 and NRF CRP grant number NRF-CRP16-2015-05. Q. He would also like to acknowledge the support of the National Research Foundation (NRF) Singapore, under its NRF Fellowship (NRF-NRFF11-2019-0002). W. Zhou acknowledges the support from Beijing Outstanding Young Scientist Program (BJJWZYJH01201914430039). F. Zhang acknowledges the support of the National Natural Science Foundation of China (11775105, 12074167). T. J. Pennycook acknowledges funding under the European Union’s Horizon 2020 research and innovation programme from the European Research Council (ERC) Grant agreement No. 802123-HDEM. Approved Most recent IF: 2.8
Call Number EMAT @ emat @c:irua:186958 Serial 6957
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