Analysis of the dielectric constant, spontaneous polarization and the coersive field close to the phase transitions in ferroelectric K2CoCl4

Date

2016-01-01

Author

Yurtseven, Hasan Hamit

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Temperature dependence of the dielelctric constant epsilon(a) along a axis and the spontaneous polarization P-S is analyzed near the ferroelectric transition (T-C = 182 degrees C) in K2CoCl4. The power-law formula is used for the analysis of the observed data from the literature. Critical exponents we determine from our analysis indicate that K2CoCl4 exhibits a weak first order transition. Coercive field EC is also analyzed using the experimental data which decreases smoothly as the temperature increases toward the transition temperature T-C. It is concluded that the theoretical model(s) with the non-zero applied electric field, can explain the ferroelectric properties of K2CoCl4 close to the phase transitions.

Subject Keywords

Ferroelectricity, Spontaneous polarization, Coersive field, K2CoCl4

URI

https://hdl.handle.net/11511/38297

Journal

FERROELECTRICS

DOI

https://doi.org/10.1080/00150193.2016.1238707

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “Analysis of the dielectric constant, spontaneous polarization and the coersive field close to the phase transitions in ferroelectric K2CoCl4,” FERROELECTRICS, pp. 15–21, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38297.