Zobrazeno 1 - 10
of 30
pro vyhledávání: '"D. Udron"'
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 52:614-620
A two- and, alternatively, a four-crystal monochromator were used for simultaneous measurements of the profiles backward (h) and forward (o) diffracted by a thin Si (111) crystal plate for diffraction angles up to exactly 90 ° at DCI-LURE (Orsay). I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecc685c522058c60d27ca282ab40db93
https://doi.org/10.1107/s0108767396000761
https://doi.org/10.1107/s0108767396000761
Publikováno v:
Journal of Non-Crystalline Solids. 150:361-365
Short range ordering is compared in three amorphous III-V compounds: InP, GaP and GaAs. For a-InP and a-GaP, a high degree of chemical disorder is evident from an extended X-ray absorption fine structure (EXAFS) study. In the case of a-GaAs, the thre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f6d1c7330187b54a62344295b7a95d9
https://doi.org/10.1016/0022-3093(92)90153-b
https://doi.org/10.1016/0022-3093(92)90153-b
Autor:
P. Lagarde, S. Della Longa, Anne-Marie Flank, D. Udron, Antonio Bianconi, C. Li, M. Pompa, A. Congiu-Castellano
Publikováno v:
Physical Review B. 44:10126-10138
The linearly polarized Cu {ital L}{sub 3}-edge x-ray-absorption near-edge structure (XANES) of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} has been measured and the spectra are interpreted by the full multiple-scattering approach in real space. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04c5fae33bde85b04eca3979c6f2a5a4
https://doi.org/10.1103/physrevb.44.10126
https://doi.org/10.1103/physrevb.44.10126
Publikováno v:
Journal of Non-Crystalline Solids. :131-134
The short range order around Ga and As sites in a-GaAs films has been investigated by EXAFS and anomalous X-ray scattering. The three partial pair distribution functions indicate a strong chemical ordering. The presence of three-fold coordinated As i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cab28e17a2321b9102f62ecadb4c41a
https://doi.org/10.1016/s0022-3093(05)80074-2
https://doi.org/10.1016/s0022-3093(05)80074-2
Publikováno v:
Review of Scientific Instruments. 66:1806-1808
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12506859ea61c67968c0da1262cbdc25
https://doi.org/10.1063/1.1145855
https://doi.org/10.1063/1.1145855
Autor:
D. Raoux, T. I. Morrison, C. E. M. de Campos, J. C. de Lima, T.A. Grandi, D. Udron, J.M. Tonnerre, Kleber D. Machado
Publikováno v:
Physical Review B. 67
The local atomic structure of an amorphous NiZr 2 alloy was investigated using the anomalous wide-angle x-ray scattering (AWAXS), differential anomalous scattering, and reverse Monte Carlo (RMC) simulations techniques. The AWAXS measurements were per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73426b02b2febadc90cd8ffad034a130
https://doi.org/10.1103/physrevb.67.094210
https://doi.org/10.1103/physrevb.67.094210
Publikováno v:
High-Temperature Superconductivity ISBN: 9781461364719
The orbital angular momentum ml of the Cu 3d holes in high Tc superconductors has been measured by Cu L3 x-ray absorption spectroscopy. The symmetry of the itinerant states $$3d^9 \underline L$$ (1) induced by doping at the Fermi level is deduced to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf75451f347c871095742913b9c3458
https://doi.org/10.1007/978-1-4615-3338-2_39
https://doi.org/10.1007/978-1-4615-3338-2_39
Autor:
P. Lagarde, M. Pompa, S. Turtù, D. Udron, Antonio Bianconi, Ida Pettiti, C. Li, Anne-Marie Flank, F. Campanella
Publikováno v:
Physica C: Superconductivity. :1061-1062
The change of the orbital angular momentum M l of the Cu 3d holes going from the insulating to the metallic phase has been studied in several families of high Tc superconductors. The symmetry of the 3d9 L states in the metallic phase has been studied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c4863ab80c26f54332121488ed2e85a
https://doi.org/10.1016/0921-4534(91)91754-r
https://doi.org/10.1016/0921-4534(91)91754-r
Publikováno v:
Philosophical Magazine Letters. 59:9-16
We discuss the results of an extended X-ray absorption fine-structure (EXAFS) study of chemical disorder in flash-evaporated nearly-stoichiometric amorphous Gap. The EXAFS spectra of the Kedges of both Ga and P are compared to similar data for crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::902a53776e2ab06aba5d27ba25912102
https://doi.org/10.1080/09500838908214770
https://doi.org/10.1080/09500838908214770
Publikováno v:
Journal of Non-Crystalline Solids. :435-438
The local environment of P and In in amorphous InP has been investigated by EXAFS at both K edges. EXAFS spectra are fitted by a two shell model with two types of neighbours, which suggest the presence of partial chemical disorder in this material.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::232693af9e09f54f33e2389aca65770d
https://doi.org/10.1016/0022-3093(87)90102-5
https://doi.org/10.1016/0022-3093(87)90102-5