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

Gerasimov, Roman; Egorov, V. I.; Максимова, О. Г.; Petrova, T. O.; Maksimov, A. V.

doi:10.1080/00150193.2018.1432935

Cited by 3 publications

(1 citation statement)

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“…S 0 represents an interaction between two nearest neighbors σ i and σ j . Such a Heisenberg spin Hamiltonian is widely used in simulations for ferroelectric domain structures [18][19][20]. In those models, the energy σ i • σ j = −S 0 /N without an external electric field increases with increasing λ.…”

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confidence: 99%

Electromechanical properties of ferroelectric polymers: Finsler geometry modeling and a Monte Carlo study

Egorov,

Maksimova,

Koibuchi

et al. 2020

Preprint

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Monte Carlo simulations are performed to study the electromechanical properties of polyvinylidene difluoride (PVDF) because of its unusual deformation in response to an applied electric field. PVDF is a ferroelectric polymer characterized by a negative strain along the applied electric field direction. However, the mechanism of this electromechanical response remains unclear due to the complex nature arising from the hierarchical structure across length scales. In this paper by employing the Finsler geometry (FG) model as a new approach to this problem, we show that the deformations observed in the 3D tetrahedral model are almost identical to those of real PVDF. More precisely, the simulated mechanical deformation and polarization, which are the responses to the electric field, are almost exactly the same as those in real experiments.

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confidence: 99%