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“The study of carbon nanotubules produced by catalytic method”. Ivanov V, Nagy JB, Lambin P, Lucas A, Zhang XB, Zhang XF, Bernaerts D, Van Tendeloo G, Amelinckx S, van Landuyt J, Chemical physics letters 223, 329 (1994). http://doi.org/10.1016/0009-2614(94)00467-6
Abstract: Catalytic methods for the production of carbon nanotubules have been developed based on the decomposition of acetylene on well-dispersed metal particles strongly adsorbed on a support. Cobalt on silica was found to be the best catalyst-support combination for the production of graphitic tubules. The method for the catalyst preparation and the reaction conditions were optimized. Straight and coiled carbon tubules were obtained with inner and outer diameter of 3-7 and 15-20 nm, respectively, and up to 30 mum in length. These nanotubules were not coated by amorphous carbon. Traces of amorphous carbon could be removed by hydrogen. High resolution electron microscopy images and electron diffraction patterns of the straight nanotubules were similar to those obtained by the arc-discharge method. Coiled nanotubules were revealed by TEM to be regular polygonized helices where the bends are caused by pairs of pentagon-heptagon carbon rings among the hexagonal network.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 1.897
Times cited: 405
DOI: 10.1016/0009-2614(94)00467-6
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“Transition energies of D- centers in a superlattice”. Shi JM, Peeters FM, Devreese JT, Surface science : a journal devoted to the physics and chemistry of interfaces 305, 220 (1994). http://doi.org/10.1016/0039-6028(94)90888-5
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 1.925
Times cited: 6
DOI: 10.1016/0039-6028(94)90888-5
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“Two-dimensional tunneling through magnetic barriers”. Matulis A, Peeters FM, Vasilopoulos P, Surface science : a journal devoted to the physics and chemistry of interfaces 305, 434 (1994). http://doi.org/10.1016/0039-6028(94)90931-8
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 1.925
Times cited: 2
DOI: 10.1016/0039-6028(94)90931-8
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“Atomic imaging of cage like structures of silicon”. Nistor L, Van Tendeloo G, Amelinckx S, Cros C, Physica status solidi: A: applied research 146, 119 (1994). http://doi.org/10.1002/pssa.2211460111
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 12
DOI: 10.1002/pssa.2211460111
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“Electron-diffraction evidence for ordering of interstitial silver ions in silver bromide microcrystals”. Goessens C, Schryvers D, van Dyck D, van Landuyt J, de Keyzer R, Physica status solidi: A 143, 277 (1994). http://doi.org/10.1002/pssa.2211430211
Abstract: The occurrence and origin of diffuse intensity contours in electron micrographs of AgBr crystals are investigated. The observations are interpreted in terms of a model, which attributes diffuse scattering to the presence of predominant atom or vacancy clusters of a particular polyhedral type. It is shown that irrespective of the crystal morphology, interstitial Ag ions order in AgBr material in clusters of finite size along 001 type planes. A different geometry of the diffuse intensity locus observed for triangular and hexagonal tabular grains is explained in terms of the different twin plane morphology of these grains.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab
Times cited: 7
DOI: 10.1002/pssa.2211430211
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“Laser microprobe mass spectrometry in biology and biomedicine”. Eeckhaoudt S, van Vaeck L, Gijbels R, van Grieken RE, Scanning microscopy S8, 335 (1994)
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Physics of generation and detection of signals used for microcharacterization”. Remond G, Gijbels R, Levenson LL, Shimizu R Scanning Microscopy International, Chicago, Ill. (1994).
Keywords: ME3 Book as editor; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“A Fourier transform laser microprobe mass spectrometer with external ion source for organic and inorganic surface and micro-analysis”. van Roy W, Struyf H, van Vaeck L, Gijbels R, Caravatti P Wiley, Chichester, page 463 (1994).
Keywords: H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Characterization of complex silver halide photographic systems by means of analytical electron microscopy”. Oleshko V, Gijbels R, Jacob W, Alfimov M, Microbeam analysis 3, 1 (1994)
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Electron-microscopy and the structural studies of superconducting materials and fullerites”. Van Tendeloo G, Amelinckx S, NATO Advanced Study Institutes series: series E : applied sciences
T2 –, NATO Advanced Study Institute on Materials and crystallographic Aspects, of HT(c)-Superconductivity, May 17-30, 1993, Erice, Italy , 521 (1994)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
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“Molecular orientation and conductivity in highly oriented poly(p-phenylene vinylene)”. Briers J, Eevers W, Cos P, Geise HJ, Mertens R, Nagels P, Zhang XB, Van Tendeloo G, Herrebout W, van der Veken B, Polymer 35, 4569 (1994). http://doi.org/10.1016/0032-3861(94)90804-4
Keywords: A1 Journal article; Molecular Spectroscopy (MolSpec); Electron microscopy for materials research (EMAT)
Impact Factor: 3.562
Times cited: 16
DOI: 10.1016/0032-3861(94)90804-4
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“Direct observation of laser-induced crystallization of a-C : H films”. Nistor LC, van Landuyt J, Ralchenko VG, Kononenko TV, Obraztsova ED, Strelnitsky VE, Applied physics A : materials science &, processing 58, 137 (1994). http://doi.org/10.1007/BF00332170
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.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 73
DOI: 10.1007/BF00332170
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“Excited states of the one-dimensional bipolaron in the strong coupling limit”. Vansant P, Smondyrev MA, Peeters FM, Devreese JT, Bulletin of the American Physical Society 39, 889 (1994)
Keywords: A3 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
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“Growth mode and electronic-structure of the epitaxial C60(111)/GeS(001) interface”. Gensterblum G, Hevesi K, Han BY, Yu LM, Pireaux JJ, Thiry PA, Caudano R, Lucas AA, Bernaerts D, Amelinckx S, Van Tendeloo G, Bendele G, Buslaps T, Johnson RL, Foss M, Feidenhans’l R, Le Lay G;, Physical review : B : condensed matter and materials physics 50, 11981 (1994). http://doi.org/10.1103/PhysRevB.50.11981
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 3.736
Times cited: 81
DOI: 10.1103/PhysRevB.50.11981
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“Interband magnetooptical studies of resonant polaron coupling in CdTe/Cd1-xMnxTe quantum-wells”. Nicholas RJ, Sasaki S, Miura N, Peeters FM, Shi JM, Hai GQ, Devreese JT, Lawless MJ, Ashenford DE, Lunn B, Physical Review B 50, 7596 (1994). http://doi.org/10.1103/PhysRevB.50.7596
Abstract: Magnetoreflectivity measurements of the 1s and 2s exciton energies in a CdTe/Cd1-xMnxTe superlattice have been made in magnetic fields up to 45 T, showing the resonant polaron coupling of electrons to LO phonons. Strong reflectivity features are seen for both the 1s and 2s excitons, which show a strong field-dependent spin splitting due to the dilute magnetic barriers. At B-z=0, the 2s exciton feature is observed lying 18 meV above the Is state, and is shifted upward in energy by the magnetic fields. No resonant behavior occurs when the 2s state passes through the LO-phonon energy of 21 meV, but at higher fields of around 20 T, the resonances for both spin states (sigma(+/-)) of the 2s exciton broaden and show a strong anticrossing behavior. These experiments are shown to be in excellent agreement with a theoretical treatment which includes the resonant polaron coupling of the electrons alone. Both experiment and theory demonstrate an extremely strong resonant splitting of the 2s exciton states of approximately 11 meV, which is over 50% of the LO-phonon energy. The dominance of single-particle polaron coupling is attributed to the relative sizes of the polaron (35 Angstrom A) and the exciton (50 Angstrom A) radius.
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 10
DOI: 10.1103/PhysRevB.50.7596
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“One-dimensional bipolaron in the strong coupling limit”. Vansant P, Smondyrev MA, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 50, 12524 (1994). http://doi.org/10.1103/PhysRevB.50.12524
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 15
DOI: 10.1103/PhysRevB.50.12524
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“Ordering and phase transitions of charged particles in a classical finite two-dimensional system”. Bedanov VM, Peeters FM, Physical review : B : condensed matter and materials physics 49, 2667 (1994)
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 3.736
Times cited: 412
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“Shallow donor impurities in GaAs/AlxGa1-xAs superlattices in a magnetic-field”. Shi JM, Peeters FM, Devreese JT, Physical review : B : condensed matter and materials physics 50, 15182 (1994). http://doi.org/10.1103/PhysRevB.50.15182
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 3.736
Times cited: 71
DOI: 10.1103/PhysRevB.50.15182
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“Shallow-donor states in strongly-coupled super-lattices”. Shi JM, Peeters FM, Devreese JT, Bulletin of the American Physical Society 39, 488 (1994)
Keywords: A3 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
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“Crystallography of fullerites and related graphene textures”. van Landuyt J, Van Tendeloo G, Amelinckx S, Zhang XF, Zhang XB, Luyten W, Materials science forum 150/151, 53 (1994)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
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“Complex structural and analytical characterization of silver halide photographic systems by means of analytical electron microscopy”. Oleshko V, Gijbels R, Jacob W, Alfimov M Editions de physique, Les Ulis, page 701 (1994).
Keywords: H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Defect structure of Hg-based ceramic superconductors (invited)”. Van Tendeloo G, Hervieu M, Chaillout C, Sciences , 949 (1994)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
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“HREM imaging analysis in the study of pretransition and nucleation phenomena in alloys (Invited)”. Schryvers D, Van Tendeloo G, van Landuyt J, Le Tanner, , 659 (1994)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
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“HREM study of Rb6C60 and helical shaped carbon nanotubules”. Bernaerts D, Zhang X, Zhang X, Van Tendeloo G, Vanlanduyt J, Amelinckx S, Sciences , 305 (1994)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
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“Laser induced phase transition in iron thin films”. Teodorescu VS, Mihailescu IN, Dinescu M, Chitica N, Nistor LC, van Landuyt J, Barborica A, Journal de physique: 3: applied physics, materials science, fluids, plasma and instrumentation 4, 127 (1994). http://doi.org/10.1051/jp4:1994427
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 2
DOI: 10.1051/jp4:1994427
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“Martensitic and bainitic transformations in Ni-Al alloys”. Schryvers D, Journal de physique: 4 C2, 225 (1994)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
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“Mécanismes de la non-stoechiométrie dans les nouveaux supraconducteurs à, haute Tc”. Hervieu M, Michel C, Martin C, Huvé, M, Van Tendeloo G, Maignan A, Pelloquin D, Goutenoire F, Raveau B, Journal de physique: 3: applied physics, materials science, fluids, plasma and instrumentation 4, 2057 (1994)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
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“Nucleation and growth of the Ni5Al3 in NiAl austenite and martensite”. Schryvers D, Toth L, Ma Y, Tanner LE, Journal de physique: 4 C2, 299 (1994)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
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“Analysis of platinum powder by glow discharge mass spectrometry”. van Straaten M, Swenters K, Gijbels R, Verlinden J, Adriaenssens E, Journal of analytical atomic spectrometry 9, 1389 (1994). http://doi.org/10.1039/ja9940901389
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.466
Times cited: 17
DOI: 10.1039/ja9940901389
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“Bloch and localized electrons in semiconductor superlattices”. Helm M, Hilber W, Fromherz T, Peeters FM, Alavi K, Pathak RN, Semiconductor science and technology 9, 1989 (1994). http://doi.org/10.1088/0268-1242/9/11S/022
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 2.19
Times cited: 1
DOI: 10.1088/0268-1242/9/11S/022
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