Temperature dependence of the mode Gruneisen parameter in the vicinity of the lambda-transition point in NH4Cl


Karacali H., Yurtseven H.

JOURNAL OF THE INDIAN CHEMICAL SOCIETY, vol.83, no.11, pp.1097-1102, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 83 Issue: 11
  • Publication Date: 2006
  • Title of Journal : JOURNAL OF THE INDIAN CHEMICAL SOCIETY
  • Page Numbers: pp.1097-1102

Abstract

This study gives our relations between the specific heat C P and the Raman frequency shifts (1/v)(partial derivative v/partial derivative T)(p) for the lattice modes of v(5) (144 cm(-1)) and v(5) (174 cm(-1)), when the mode Gruneisen parameter gamma(p) depends on the temperature near. the lambda-transition in NH4Cl (T-lambda = 242.5 K, P = 0).