gamma-Gruneisen relations close to lambda-phase transitions in NH4Cl

Date

1996-08-01

Author

Yurtseven, Hasan Hamit

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In this study we have correlated the frequency shifts of the acoustic modes to the volume changes by means of our gamma-Gruneisen relations near the lambda-phase transitions in NH4Cl. Using the acoustic frequencies and the length-change data for NH4Cl from the literature, we first calculated the Gruneisen gamma values for the LA modes along the (100) and (110) directions and for the TA mode along the (110) direction. We then predicted the acoustic mode frequencies across the lambda-phase transitions in NH4Cl.

Subject Keywords

Acoustic mode, Ammonium chloride, Gamma-Gruneisen relations, Phase transition

URI

https://hdl.handle.net/11511/51542

Journal

JOURNAL OF MOLECULAR STRUCTURE

DOI

https://doi.org/10.1016/0022-2860(96)09235-6

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “gamma-Gruneisen relations close to lambda-phase transitions in NH4Cl,” JOURNAL OF MOLECULAR STRUCTURE, pp. 57–62, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51542.