Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Mehdi Amara"'
Publikováno v:
Physical Review B. 104
Competition between antiferromagnetic (AFM), paramagnetic (PM), and ferromagnetic (FM) states in ${\mathrm{La}}_{0.9}{\mathrm{Ce}}_{0.1}{\mathrm{Fe}}_{12}{\mathrm{B}}_{6}$ compound is investigated by means of temperature- and magnetic field-dependent
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2020, 101 (9), pp.094411. ⟨10.1103/PhysRevB.101.094411⟩
Physical Review B, American Physical Society, 2020, 101 (9), pp.094411. ⟨10.1103/PhysRevB.101.094411⟩
The reported temperature variations of CeB6 s magnetic entropy are inconsistent with the fourfold degeneracy of the crystal field ground state. This old question is here addressed through new specific heat measurements and an improved description, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2ad76f8e0f8d0209d46b0c17801d6d9
http://arxiv.org/abs/1907.05775
http://arxiv.org/abs/1907.05775
Autor:
Mehdi Amara
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2019, 99 (17), pp.174405. ⟨10.1103/PhysRevB.99.174405⟩
Physical Review B, American Physical Society, 2019, 99 (17), pp.174405. ⟨10.1103/PhysRevB.99.174405⟩
International audience; The crystalline electric field (CEF) influence is usually described by considering an ideally symmetrical rare-earth site. In the case of cage compounds, ample excursions of the rare earth inside the cage require an adapted CE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f536a0e0855d404398da472badc7899
Autor:
X. Fabrèges, L. P. Regnault, Fabienne Duc, Emmanuelle Suard, S. de Brion, Benjamin Canals, Mehdi Amara, Virginie Simonet, Carsten Detlefs, Pierre Strobel, Eric Ressouche, Luigi Paolasini
Publikováno v:
Physical Review B. 95
In the spinel compound ${\mathrm{GeCo}}_{2}{\mathrm{O}}_{4}$, the ${\mathrm{Co}}^{2+}$ pyrochlore sublattice presents remarkable magnetic-field-induced behaviors that we unveil through neutron and x-ray single-crystal diffraction. The N\'eel-ordered
Publikováno v:
Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2015, 592, pp.012011. ⟨10.1088/1742-6596/592/1/012011⟩
'Journal of Physics : Conference Series ', vol: 592, pages: 012011-1-012011-5 (2015)
Journal of Physics: Conference Series, IOP Publishing, 2015, 592, pp.012011. ⟨10.1088/1742-6596/592/1/012011⟩
'Journal of Physics : Conference Series ', vol: 592, pages: 012011-1-012011-5 (2015)
International audience; The filled skutterudite CePt4Ge12 is reported to be at the border between an intermediate valence (IV) state and a Kondo lattice behavior. We report here the first inelastic neutron scattering experiments, carried out on the C