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, cilt.83, sa.11, ss.1097-1102, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 83 Sayı: 11
  • Basım Tarihi: 2006
  • Dergi Adı: JOURNAL OF THE INDIAN CHEMICAL SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1097-1102
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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).