Calculation of the ultrasonic frequencies of the q[110] mode for the first-order and tricritical phase transitions in NH4Cl

Date

2000-07-01

Author

Yurtseven, Hasan Hamit

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We study here the ultrasonic frequencies of the q[110] mode of NH4Cl, which we have correlated to the volume changes for the first-order and the tricritical phase transitions in this crystal. We calculated the ultrasonic frequencies of this mode by means of our correlations for the pressures of 0, 0.5 and 0.95 kbar in the first order, and for 1.5 kbar in the tricritical phase regions in NH4Cl using the observed data.

Subject Keywords

Ultrasonic frequencies, First-order and tricritical phase transitions, NH4Cl

URI

https://hdl.handle.net/11511/56703

Journal

JOURNAL OF MOLECULAR STRUCTURE

DOI

https://doi.org/10.1016/s0022-2860(00)00420-8

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “Calculation of the ultrasonic frequencies of the q[110] mode for the first-order and tricritical phase transitions in NH4Cl,” JOURNAL OF MOLECULAR STRUCTURE, pp. 87–96, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56703.