On the large temperature variation of the dielectric constant of Na 0.4 K 0.6 Br | Zendy

KatsikaTsigourakou V. | Zendy; Bekris P. | Zendy

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On the large temperature variation of the dielectric constant of Na 0.4 K 0.6 Br

Author(s) -

KatsikaTsigourakou V.,

Bekris P.

Publication year - 2009

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200844262

Subject(s) - dielectric , polarizability , halide , alkali metal , variation (astronomy) , ionic bonding , constant (computer programming) , analytical chemistry (journal) , chemistry , materials science , mineralogy , thermodynamics , inorganic chemistry , ion , physics , organic chemistry , molecule , optoelectronics , astrophysics , computer science , programming language

Since polycrystals of alkali halides are highly useful as components in optical devices, a number of mixed crystals of NaBr and KBr have been recently prepared from melts by other workers. Among these crystals, it was reported that the polycrystal Na 0.4 K 0.6 Br exhibits the strongest temperature variation of the dielectric constant. Here, we show quantitatively that this is due to the temperature variation of the ionic polarizability. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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