| Инд. авторы: | Gorev M.V., Flerov I.N., Tressaud A., Bogdanov E.V., Kartashev A.V., Bayukov O.A., Eremin E.V., Krylov A.S. |
| Заглавие: | Heat capacity and magnetic properties of fluoride CsFe2+Fe3+F6 with defect pyrochlore structure |
| Библ. ссылка: | Gorev M.V., Flerov I.N., Tressaud A., Bogdanov E.V., Kartashev A.V., Bayukov O.A., Eremin E.V., Krylov A.S. Heat capacity and magnetic properties of fluoride CsFe2+Fe3+F6 with defect pyrochlore structure // Journal of Solid State Chemistry. - 2016. - Vol.237. - P.330-335. - ISSN 0022-4596. - EISSN 1095-726X. |
| Внешние системы: | DOI: 10.1016/j.jssc.2016.02.045; SCOPUS: 2-s2.0-84960172469; WoS: 000373661100045; |
| Реферат: | eng: Heat capacity, Mossbauer 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-I4(1)amd-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. (C) 2016 Elsevier Inc. All rights reserved.
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| Ключевые слова: | MOSSBAUER; CRYSTAL-STRUCTURE; Thermal properties; SPECTRA; Phase transition; Pyrochlore structure; Magnetic properties; CSFE2F6; |
| Издано: | 2016 |
| Физ. характеристика: | с.330-335 |