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

---

Copy For Citation

Karacali H., Yurtseven H.

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

• Publication Type: Article / Article
• Volume: 83 Issue: 11
• Publication Date: 2006
• Journal Name: JOURNAL OF THE INDIAN CHEMICAL SOCIETY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.1097-1102
• Middle East Technical University Affiliated: Yes

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).