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Pogorel’Tsev, E. I.
Mel’Nikova, S. V.
Kartashev, A. V.
Gorev, M. V.
Flerov, I. N.
Laptash, N. M.
2018-02-07T07:31:29Z
2018-02-07T07:31:29Z
2017-05
Pogorel’Tsev, E. I. Thermal, Optical, and Dielectric Properties of Fluoride Rb2TaF7 [Текст] / E. I. Pogorel’Tsev, S. V. Mel’Nikova, A. V. Kartashev, M. V. Gorev, I. N. Flerov, N. M. Laptash // Physics of the Solid State. — 2017. — Т. 59 (№ 5). — С. 986-991
10637834
https://link.springer.com/article/10.1134/S1063783417050250
http://elib.sfu-kras.ru/handle/2311/70028
Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
The thermal, optical, and dielectric properties of fluoride Rb2TaF7 were investigated. It was observed that the variation in chemical pressure in fluorides TaF7 caused by the cation substitution of rubidium for ammonium does not affect the ferroelastic nature of structural distortions, but leads to stabilization of the high- and low-temperature phases and enhancement of birefringence. The entropy of the phase transition P4/nmm ↔ Cmma is typical of the shift transformations, which is consistent with a model of the initial and distorted phase structures. The anisotropy of chemical pressure causes the change of signs of the anomalous strain and baric coefficient dT/dp of Rb2TaF7 as compared with the values for its ammonium analog.
PHASE-TRANSITIONS
DISORDER
DIFFRACTION
OXYFLUORIDE
Thermal, Optical, and Dielectric Properties of Fluoride Rb2TaF7
Journal Article
Journal Article Preprint
986-991
29.19
2018-02-07T07:31:29Z
10.1134/S1063783417050250
Институт инженерной физики и радиоэлектроники
Кафедра теплофизики
Physics of the Solid State
Q2
Q4


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