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arXiv · 2509.23526

Phase transitions and polarization switching in quasi-one-dimensional organic ferroelectrics of phenyltetrazole family

A. P. Moina
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Abstract

Pseudospin models are proposed for description of the phase transitions, dielectric characteristics, and polarization switching in two crystals of the phenyltetrazole family. One of them, APHTZ, is a canted ferroelectric, whereas the other, MPHTZ is a simple antiferroelectric. In APHTZ the electric field, applied perpendicularly to the axis of spontaneous polarization, flips the polarization in one of the two sublattices, effectively rotating the non-zero net polarization by 90$^\circ$ and switching the system between two different ferroelectric configurations. The temperature-electric field phase diagrams are constructed. The diagram topology appears to be typical for the Ising-like antiferroelectric systems.

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A. P. Moina. 2025-09-27. Phase transitions and polarization switching in quasi-one-dimensional organic ferroelectrics of phenyltetrazole family. https://arxiv.org/abs/2509.23526

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