Calculation of the specific heat for the first order phase transition in NH4Br

Yurtseven H. H., Yanik A., Sherman W.

MODERN PHYSICS LETTERS B, vol.12, pp.1089-1095, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 12
  • Publication Date: 1998
  • Doi Number: 10.1142/s021798499800127x
  • Journal Name: MODERN PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1089-1095
  • Middle East Technical University Affiliated: No

Abstract

We calculate in this work the specific heat C-VI using the predictions of an Ising model for the NH4Br crystal (T-C = 234 K, P = 0). Our calculated C-VI values are in good agreement with the experimentally observed C-p data from the literature. This shows that the observed behavior of NH4Br can be described adequately in the lattice region under an Ising model studied here.