Analysis of the Raman frequencies close to the lambda-phase transition in NH4Cl

Date

2007-05-27

Author

Yurtseven, Hasan Hamit

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This study gives our analysis of the Raman frequencies for the lattice modes of v(5)TO(174 cm(-1)), v(5)TO(144 cm(-1)) and v(7)TA(93 cm(-1)), and an internal mode of v(2)(1708 cm(-1)) as functions of temperature in NH4Cl close to its lambda-phase transition (T-lambda = 241.2 K, P = 0). This analysis is performed using a power-law formula with the critical exponent beta for the order parameter according to the soft mode-hard mode coupling model.

Subject Keywords

Inorganic Chemistry, Organic Chemistry, Analytical Chemistry, Spectroscopy

URI

https://hdl.handle.net/11511/42764

Journal

JOURNAL OF MOLECULAR STRUCTURE

DOI

https://doi.org/10.1016/j.molstruc.2006.10.062

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “Analysis of the Raman frequencies close to the lambda-phase transition in NH4Cl,” JOURNAL OF MOLECULAR STRUCTURE, pp. 426–429, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42764.