The Electric Susceptibility of Bi-Layers Ferroelectrics

Vincensius Gunawan; Ngurah Ayu Ketut Umiati; Agus Subagio

doi:10.14710/jpa.v1i2.4860

DOI: https://doi.org/10.14710/jpa.v1i2.4860

The Electric Susceptibility of Bi-Layers Ferroelectrics

*Vincensius Gunawan - Department of Physics, Universitas Diponegoro, Indonesia

Ngurah Ayu Ketut Umiati - Department of Physics, Universitas Diponegoro, Indonesia

Agus Subagio - Department of Physics, Universitas Diponegoro, Indonesia

Received: 14 May 2019; Accepted: 2 Jun 2019; Available online: 15 Jun 2019; Published: 20 Jun 2019.

under http://creativecommons.org/licenses/by-sa/4.0.

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Abstract

In order to enhance insight of layered structure, we perform numerical calculation to obtain the dynamic electric susceptibility in bi-layers ferroelectrics. Since susceptibility is a parameter which gives response to the external field, then determination of this parameter is important. A lattice model is employed to slice bilayer structure into several lattices. Then, Landau-Khalatnikov equation of motion is used in each lattice to construct a matrix equation of equation of motion. The solution is obtained by applying entire-cell effective medium. We find that the homogeneity of dynamic polarization is different from homogeneity of the single individual layer due to the existence of interlayer interaction. As a result, the electric susceptibility is also altered. It is also noticed that there is a relation between the homogeneity of dynamic polarization and the value of electric susceptibility near resonant frequency. The higher the homogeneity, the bigger the values of susceptibility will be.

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Keywords: Electric Susceptibility; Polarization; Bilayer Ferroelectric

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Section: Articles

Language : EN

In Vol 1, No 2 (2019): May 2019

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