Temperature dependence of the IR mode frequency calculated from the volume data for DMNaFE

Date

2019-10-26

Author

Alguel, G.
Enginer, Y.
Yurtseven, Hasan Hamit

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We analyze the infrared (IR) frequencies of the internal mode of asymmetric close to phase transition in DMNaFe. By means of the mode Gruneisen parameter , the IR frequencies are calculated from the observed volume data given in the literature. Calculated frequencies are fitted to the observed data for both below and above as the varies with the temperature in the low and high temperature phases in this compound. Our results show that the critical behavior of the observed IR frequencies can be explained from the volume data to describe a first order structural phase transition in DMNaFe.

Subject Keywords

Electronic, Optical and Magnetic Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/40332

Journal

FERROELECTRICS

DOI

https://doi.org/10.1080/00150193.2019.1658049

Collections

Department of Physics, Article

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Citation Formats

G. Alguel, Y. Enginer, and H. H. Yurtseven, “Temperature dependence of the IR mode frequency calculated from the volume data for DMNaFE,” FERROELECTRICS, pp. 229–234, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40332.