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- Article name
- Numerical simulation of dielectric hysteresis loops in ferroelectric materials based on alkali metal niobates and lead titanate-zirconate
- Authors
- ANDRUSHIN K. P., , vortexblow@gmail.com, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
MOYSA M. O., , moysa@sfedu.ru, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
- Keywords
- statistical model / Preisach model / distribution function / switching processes
- Year
- 2022 Issue 2 Pages 3 - 7
- Code EDN
- ACQYYH
- Code DOI
- 10.52190/2073-2562_2022_2_3
- Abstract
- The article presents the results of numerical simulation of dielectric hysteresis loops in materials based on alkali metal niobates (SS1) and industrial ferroconceramic materials PCR7M (FPCM1) and PZT-19 (FPCM2). Expressions are found for the descending branch of dielectric hysteresis loops by double integration of Gaussian weight functions derived from the Arc-Tangent function and representation of the distribution function as a polynomial of a rational function. Calculations of the fitting coefficients of expressions for the branches of the hysteresis loop were carried out in the MAPLE environment by the least squares method. The approximation results show that the best overlay of the theoretical curve on experimental points was achieved in SS1 using an expression derived from a rational function, and in the PCR7M material by means of an expression based on a weight function derived from the Arc-Tangent function. The conclusion is made about the expediency of using obtained results in the development of ferroelectric ceramic materials and devices based on them.
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