- PII
- 10.31857/S0207401X24110041-1
- DOI
- 10.31857/S0207401X24110041
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 43 / Issue number 11
- Pages
- 31-38
- Abstract
- A model is proposed to study the effect of regiodefects on the behavior of ferroelectric polymers in an electric field at low temperatures. Within the framework of the model, it is shown that there is a smooth reorientation of the dipole moments of monomers near the refiodefects, which is in agreement with the data obtained in molecular dynamics (MD) calculations. An analytical expression is obtained for the dependence of the average polarization on temperature, electric field, and concentration of regiodefects. Comparison with MD calculations allows us to estimate the bond stiffness of neighboring monomers and the induced electric field. The quantum version of the proposed model is investigated. It is shown that the ground state is singlet, and excitations can be either gapful or gapless, depending on the parity of the number of monomers between defects. There is a plateau on the zero-temperature magnetization curve.
- Keywords
- сегнетоэлектрические полимеры поливинилиденди-фторид региодефект
- Date of publication
- 20.11.2024
- Year of publication
- 2024
- Number of purchasers
- 0
- Views
- 48
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