Study of the repolarization processes in ferroelectric polymer materials using computer simulation methods

• Published in: Ferroelectrics Vol. 525; no. 1; pp. 93 - 99
• Main Authors: Gerasimov, R. A., Egorov, V. I., Maksimova, O. G., Petrova, T. O., Maksimov, A. V.
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis 12-03-2018; Taylor & Francis Ltd
• Subjects: Absorptivity; Addition polymerization; Computer simulation; Electric fields; Ferroelectric materials; Ferroelectric polymer; Ferroelectricity; hysteresis; inverse piezoelectric effect; Lennard-Jones potential; Monte Carlo simulation; Monte-Carlo method; Polymers
• ISSN: 0015-0193; 1563-5112
• DOI: 10.1080/00150193.2018.1432935

Computer simulation of repolarization and inverse piezoeffect is realized by Monte-Carlo method in polymer ferroelectric materials, observed in AC electric field with different frequencies and amplitudes. For describing the interactions between the segments of polymer chains, Lennard-Jones potential was used with additional term describing exchange short-range orientational interactions. We investigate the influence of temperature and parameters of external electric field on the hysteresis curve area, which determines the absorption coefficient. It is shown that for ferroelectric systems there is a frequency of the external field, which accounts for the maximum absorptivity.