Simulation of Nonlinear Pyroelectric Response of Ferroelectrics near Phase Transition: Fractional Differential Approach

Abstract:

The paper is devoted to mathematical modeling pyroelectric current of ferroelectric single crystal under the conditions of intensive light heating in view of fractal behavior of these materials. The proposed approach is based on numerical simulation of thermal distribution in a ferroelectric sample using time fractional operator as well as computation of pyroelectric response. The simulation results for typical TGS ferroelectric crystal were described in one-dimensional case of the model in comparison with experimental data. Pyroelectric signals depending on temperature pyroelectric coefficient and thermal physical characteristics were also analyzed.

• Periodical: Materials Science Forum (Volume 992)
• Pages: 843-848
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.992.843
• Online since: May 2020
• Authors: L. Moroz*, Anna Maslovskaya
• Keywords: Ferroelectrics, Fractional Order Partial Differential Equation, Nonlinear Mode, Numerical Simulation of Pyroelectric Current, Pyroelectric Effect, Temperature Distribution, Thermal Conductivity

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