Specific heat of NH4Br and NH4BrxCl1-x crystals close to the antiferroelectric transition

Date

2005-11-01

Author

Yurtseven, Hasan Hamit

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We calculate the specific heat C-VI of NH4Br and mixed crystals of NH4BrxCl1-x using the Ising model for the transition between the disordered (D) and antiferro- (AF) electric phases in these crystalline systems. Our C-VI values, which we calculated for x(Br)=1, 0.26, and 0.51 are in good agreement, both below and above T-C, with the observed C-P data from the literature. Our value of congruent to 0.1 (T < T-C and T>T-C) for the critical exponent of the specific heat agrees with the value of 0.125 predicted by a three-dimensional Ising model.

Subject Keywords

General Physics and Astronomy

URI

https://hdl.handle.net/11511/40924

Journal

JOURNAL OF APPLIED PHYSICS

DOI

https://doi.org/10.1063/1.1989427

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “Specific heat of NH4Br and NH4BrxCl1-x crystals close to the antiferroelectric transition,” JOURNAL OF APPLIED PHYSICS, pp. 0–0, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40924.