Zobrazeno 1 - 10
of 166
pro vyhledávání: '"J. Chenavas"'
Autor:
J. Chenavas, Paolo G. Radaelli, J.L. Tholence, E.V. Antipov, F. Gerhards, Pierre Bordet, B. Souletie, M. Marezio, Catherine Chaillout, Sergio Paulo Martins Loureiro, E. Kopnine, M. D. Núñez-Regueiro, J.J. Capponi, M.F. Gorius
High-pressure high temperature synthesis has allowed us to prepare members of the new superconducting mercury cuprates series with n = 1–6. The variation of the structural and magnetic properties, oxygen content and T c across the series, which app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b51ea46a08d2c937d500fc84dd19899
https://doi.org/10.1016/0921-4534(94)91334-x
https://doi.org/10.1016/0921-4534(94)91334-x
Autor:
Robert S. Roth, C. Li, Leonid A. Bendersky, J. Chenavas, J. Planes, Ian E. Grey, William G. Mumme
Publikováno v:
ResearcherID
Two new calcium tantalate polytypes have been prepared in the system Ca 2 Ta 2 O 7 –Ca 2 Nb 2 O 7 . Their structures have been determined and refined using single-crystal X-ray diffraction data and powder neutron diffraction data, and their dielect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d618275f64b8167f53528f4416e9708
https://doi.org/10.1006/jssc.2001.9308
https://doi.org/10.1006/jssc.2001.9308
Autor:
J.J. Capponi, S. LeFloch, Pierre Bordet, M. Marezio, J.L. Tholence, J. Chenavas, Paolo G. Radaelli, E.V. Antipov, Sergio Paulo Martins Loureiro, Catherine Chaillout
Publikováno v:
Physica C: Superconductivity. :65-68
In mercury superconducting cuprates synthesized at high pressure, partial carbon substitution on the mercury site occurs when the precursors are not absolutely carbon free. Hg-12(n−1)n samples made from carbonate-containing precursors show lower T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::125bd13f5e325abc6e0d6bd0f851a665
https://doi.org/10.1016/s0921-4534(97)00211-6
https://doi.org/10.1016/s0921-4534(97)00211-6
Autor:
M. Jaime, S. de Brion, M. A. Alario Franco, Catherine Chaillout, M. Núñez Regueiro, Pierre Bordet, M. Marezio, J. Chenavas, J.J. Capponi, André Sulpice, B. Souletie, J.L. Tholence
Publikováno v:
Solid State Communications. 97:131-135
Samples of the (Cu x C 1−x )Ba 2 Ca n−1 Cu n O y family have been prepared under various conditions to obtain the n=3 (T c ≈80K), n=4 (T c ≈117K) phases, and sequences going up to n=7. Moreover, a minority (unidentified) phase with T c as hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51f4abf20e322fb81cf4ae3acc73c6be
https://doi.org/10.1016/0038-1098(95)00583-8
https://doi.org/10.1016/0038-1098(95)00583-8
Autor:
M. Marezio, J. Chenavas
Publikováno v:
Journal of Solid State Chemistry. 121:24-32
This article comprises four sections. The first introduces the subject of pressure-induced syntheses and phase transitions taking place in ionic compounds. Examples are described to illustrate the general trends governing these transformations, namel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a7f575bfdf3abf1fdcf503781415ad7
https://doi.org/10.1006/jssc.1996.0004
https://doi.org/10.1006/jssc.1996.0004
Autor:
Pierre Bordet, Pascal Lejay, J. X. Boucherle, A. Vernière, Niels Keller, J.L. Tholence, J. Chenavas
Publikováno v:
Journal of Alloys and Compounds. 218:197-203
New ternary silicides have been discovered with the general formula R4T13X9, where R is a rare earth or uranium, T is rhodium or iridium and X is silicon or germanium. The crystal structure has been solved on a single crystal. The symmetry is orthorh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba041892a03bfd7a7dff93790152fefd
https://doi.org/10.1016/0925-8388(94)01400-0
https://doi.org/10.1016/0925-8388(94)01400-0
Publikováno v:
Thin Solid Films. 255:35-38
The luminescence and Raman spectra of porous silicon have been studied at room temperature as a function of hydrostatic pressure up to 15 GPa. The luminescence is still observed in the high pressure metallic phase, showing that it is not related to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79d24da9af2c62dc54e1584a7da88bf6
https://doi.org/10.1016/0040-6090(94)05625-n
https://doi.org/10.1016/0040-6090(94)05625-n
Autor:
M. Marezio, Christian Colliex, Miguel Á. Alario-Franco, T. Fournier, J. Chenavas, J.L. Baldonedo, Pierre Bordet, M.F. Gorius, J.J. Capponi, R. Argoud, Catherine Chaillout, B. Souletie, M. Perroux, André Sulpice, J.L. Tholence
Publikováno v:
Physica C: Superconductivity. 231:103-108
By means of electron microscopy and diffraction together with EDX and EELS, we have confirmed the main characteristics of the structure of the recently discovered HTSC family of “copper/carbonate cuprates”. These can be obtained at high pressure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98dba3ac865e27b6b904baeef0edb367
https://doi.org/10.1016/0921-4534(94)90147-3
https://doi.org/10.1016/0921-4534(94)90147-3
Autor:
Jean-Pascal Brison, Pierre Bordet, A. Vernière, P. Haen, J. X. Boucherle, J. Chenavas, Pascal Lejay
Publikováno v:
Journal of Alloys and Compounds. 209:251-255
New ternary compounds with general formula U2T3X (T Ru, Os; X Si, Ge) have been discovered. Their crystallographic structures have been determined by X-ray single-crystal and powder diffraction analyses. U2Ru3Si and U2Ru3Ge crystallize with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2926eeb560928da32af000856f4b7bcf
https://doi.org/10.1016/0925-8388(94)91108-8
https://doi.org/10.1016/0925-8388(94)91108-8
Autor:
F Pérez, P. Visani, M.A. de la Torre, Daniel Chateigner, M. Tovar, J. Chenavas, Pierre Bordet, Xavier Obradors, M. B. Maple
Publikováno v:
Physica C: Superconductivity and its Applications. 213:81-87
Low-temperature AC magnetic susceptibility measurements on the heavy rare-earth antiferromagnetic cuprates R 2 CuO 4 which have a T' Nd 2 CuO 4 -like crystal structure are reported. A single susceptibility maximum is observed in all the compounds at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35abe67976db37229c12f9f4bd046fa4
https://doi.org/10.1016/0921-4534(93)90761-e
https://doi.org/10.1016/0921-4534(93)90761-e