TITLE:
Pyroelectric Plate with Magnetoelectric Effect
AUTHORS:
Pavel Grinfeld, Michael Grinfeld
KEYWORDS:
Electricity and Magnetism, Pyroelectrics and Pyromagnetics, Thermodynamics of Electromagnetostatics, Exact Solutions, Validation and Verification
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.12 No.5,
May
10,
2024
ABSTRACT: In dynamic problems the electric and magnetic fields are inseparable. At the same time, a multitude of electrostatic and magnetostatic effects permit mutually independent description. This separation appears to be possible and thermodynamically consistent when the bulk energy density depends only on the polarization density or, alternatively, on the magnetization density. However, when the bulk energy density depends simultaneously on the both densities, then, the electrostatic and magnetostatic effects should be studied together. There appear interesting cross-effects; among those are the change of the internal electrostatic field inside a specimen under the influence of the external magnetic fields, and vice versa. Below, in the framework of thermodynamic approach the boundary value problem for magnetoelectric plate is formulated and analyzed. The exact solution is established for the isotropic pyroelectric plate.