Specific heat, cell parameters, phase T-p diagram, and permittivity of cryolite [.sub.2][F.sub.4]

The temperature dependences of the specific heat, unit cell parameters, susceptibility to hydrostatic pressure, and permittivity of cryolite [(N[H.sub.4]).sub.3]Nb[([O.sub.2]).sub.2][F.sub.4] have been studied. Phase transitions of nonferroelectric nature have been detected. Entropy parameters point...

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Bibliographic Details
Published in:Physics of the solid state 2011-10, Vol.53 (10), p.2147
Main Authors: Fokina, V.D, Bovina, A.F, Bogdanov, E.V, Pogorel'tsev, E.I, Laptash, N.M, Gorev, M.V, Flerov, I.N
Format: Article
Language:English
Subjects:
Aluminum compounds
Fluorine compounds
Online Access:Get full text
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Summary:The temperature dependences of the specific heat, unit cell parameters, susceptibility to hydrostatic pressure, and permittivity of cryolite [(N[H.sub.4]).sub.3]Nb[([O.sub.2]).sub.2][F.sub.4] have been studied. Phase transitions of nonferroelectric nature have been detected. Entropy parameters point to the relation of structure distortions to ordering processes.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783411100131