Heat capacity and magnetic properties of fluoride CsFe2+Fe3+F6 with defect pyrochlore structure
GOREV, Mikhail V.
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
FLEROV, Igor N.
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
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L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
GOREV, Mikhail V.
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
FLEROV, Igor N.
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
BOGDANOV, Evgeny V.
L.V. Kirensky Institute of Physics
Astafijev Krasnoyarsk State Pedagogical University
L.V. Kirensky Institute of Physics
Astafijev Krasnoyarsk State Pedagogical University
EREMIN, Evgeny V.
L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
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L.V. Kirensky Institute of Physics
Institute of Engineering Physics and Radio Electronics
Langue
en
Article de revue
Ce document a été publié dans
Journal of Solid State Chemistry. 2016-05, vol. 237, p. 330-335
Elsevier
Résumé en anglais
Heat capacity, Mössbauer and Raman spectra as well as magnetic properties of fluoride CsFe2F6 with defect pyrochlore structure were studied. In addition to recently found above room temperature three successive structural ...Lire la suite >
Heat capacity, Mössbauer and Raman spectra as well as magnetic properties of fluoride CsFe2F6 with defect pyrochlore structure were studied. In addition to recently found above room temperature three successive structural transformations Pnma-Imma-I41amd-Fd-3m, phase transition of antiferromagnetic nature with the 13.7 K Neel temperature and a broad heat capacity anomaly with a maximum at about 30 K were observed. The room temperature symmetry Pnma is unchanged at least down to 7 K. Simple model of indirect bond used to estimate the exchange interactions and to propose a magnetic structure model.< Réduire
Mots clés en anglais
Pyrochlore structure
Phase transition
Magnetic properties
Thermal properties
Origine
Importé de halUnités de recherche