Zobrazeno 1 - 10
of 512
pro vyhledávání: '"F. Givord"'
Publikováno v:
Physica B: Condensed Matter. 350:E39-E42
We report here the first powder neutron diffraction study of GdB6 and TbB6. GdB6 and TbB6 order antiferromagnetically at 15 and 21 K, respectively. In both compounds the transition at TN is of the first order. Moreover GdB6 presents a second spontane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92fc992b93e9af5e56bccb10000b368c
https://doi.org/10.1016/j.physb.2004.03.009
https://doi.org/10.1016/j.physb.2004.03.009
Autor:
A. V. Andreev, Pavel Javorský, Vladimír Sechovský, Eddy Lelièvre-Berna, J.-X. Boucherle, Martin Diviš, F. Givord, Jacques Schweizer
Publikováno v:
Physica B: Condensed Matter. 350:E131-E134
We present results of polarized neutron–diffraction studies of magnetization distribution in several isostructural UTX compounds. Besides the uranium magnetic moment, we observe a significant magnetization also on the transition-metal sites and in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b9b95fdceb08e13d32e5b60147b7373
https://doi.org/10.1016/j.physb.2004.03.035
https://doi.org/10.1016/j.physb.2004.03.035
Publikováno v:
Journal of Physics: Condensed Matter. 16:1211-1230
In the compound CeRh3B2, a rather special polarization of the conduction electrons along the c-chains of cerium atoms had been previously reported at low temperatures (Alonso et al 1998 J. Magn. Magn. Mater. 177–181 1048). The distribution of the C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5921e45886245415505d374d95358ffc
https://doi.org/10.1088/0953-8984/16/8/007
https://doi.org/10.1088/0953-8984/16/8/007
Publikováno v:
Journal of Physics: Condensed Matter. 15:3095-3106
Results of polarized neutron diffraction on the compound CeB6 are used to obtain its magnetization density distribution. The measurements are performed at two different points of the magnetic phase diagram (phase I and II). The data are analysed in d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7d0fbf53bec538034390e7fec928a05
https://doi.org/10.1088/0953-8984/15/19/311
https://doi.org/10.1088/0953-8984/15/19/311
Autor:
Gérard Fillion, F. Givord, Stéphane Raymond, J.X. Boucherle, Jacques Schweizer, Pascal Lejay, E. Lelievre-Berna
Publikováno v:
Journal of Physics: Condensed Matter. 13:10901-10909
The magnetic form factor of the heavy fermion compound CeRu2Si2 was measured by polarized neutron diffraction in the Pauli paramagnetic phase and above the metamagnetic transition. The magnetization density is characteristic of 4f electrons in both p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::259fd084e8ebea0d08182cf9000030d6
https://doi.org/10.1088/0953-8984/13/48/315
https://doi.org/10.1088/0953-8984/13/48/315
Autor:
Andrei Rogalev, Noriaki K. Sato, Eric Ressouche, J.P. Sanchez, P. Dalmas de Réotier, A. Yaouanc, J.-X. Boucherle, N. Kernavanois, F. Givord, E. Lelievre-Berna
Publikováno v:
Journal of Physics: Condensed Matter. 12:7857-7867
A polarized neutron scattering experiment and an x-ray magnetic circular dichroism (XMCD) study at the M4,5 edges of uranium have been performed on a single crystal of the heavy-fermion superconductor UNi2Al3 in the paramagnetic phase. Projections of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15814cae136cb4ac7375df877213c339
https://doi.org/10.1088/0953-8984/12/36/301
https://doi.org/10.1088/0953-8984/12/36/301
Autor:
F. Tasset, B. Gillon, J X Boucherle, Jacques Schweizer, F. Givord, P. C. Canfield, A. Hiess, E. Lelièvre-Berna
Publikováno v:
Journal of Physics: Condensed Matter. 12:829-840
Polarized neutron diffraction experiments on YbAl3 have revealed the following: (i) a field-induced magnetic moment on the ytterbium site only, which is well described by a Yb3+ free-ion form factor; (ii) a second maximum at T 15 K in the temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b2ac5243bd14a493b2fbbe3df2ae8df
https://doi.org/10.1088/0953-8984/12/6/307
https://doi.org/10.1088/0953-8984/12/6/307
Autor:
J. Dreyer, Yosikazu Isikawa, F. Givord, B. Ouladdiaf, Jacques Schweizer, S. Pujol, J X Boucherle, F. Tasset
Publikováno v:
Journal of Physics: Condensed Matter. 11:7327-7338
The orthorhombic compound CeNi2Al5 is magnetically ordered below 2.6 K. Kondo-type interactions together with strong crystal-electric-field (CEF) effects give rise to a complex magnetic structure: (i) its propagation vector is three dimensional and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7a60b4d42b566cd6d7acee08ce3d617
https://doi.org/10.1088/0953-8984/11/38/311
https://doi.org/10.1088/0953-8984/11/38/311
Autor:
F. Givord, Jacques Schweizer, Akira Ochiai, J.-X. Boucherle, Hayuyoshi Aoki, Jean-Michel Mignot, E. Lelièvre-Berna
Publikováno v:
Physica B: Condensed Matter. :47-50
Cubic Sm4Bi3 undergoes a first-order transition into a rhombohedral phase at about 260 K. This change has been ascribed to a charge-ordering transition from the thermal valence fluctuating state into a static mixture of di- and trivalent sites. In or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aa894a06636bb6e72928ecdedb34170
https://doi.org/10.1016/s0921-4526(99)00028-9
https://doi.org/10.1016/s0921-4526(99)00028-9
Autor:
Akira Ochiai, Jacques Schweizer, E. Lelièvre-Berna, J.-X. Boucherle, Hidekazu Aoki, F. Givord, Jean-Michel Mignot, Arsen Gukasov
Publikováno v:
Physica B: Condensed Matter. :37-40
Cubic Sm3Te4 can be characterized as a semiconducting, inhomogeneous mixed-valence system. No evidence of charge ordering is found at low temperature, indicating that Sm2+ and Sm3+ ions are randomly distributed on one crystallographic position. The m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a27ba56100dde9ed6869c90090e46ea0
https://doi.org/10.1016/s0921-4526(99)00026-5
https://doi.org/10.1016/s0921-4526(99)00026-5