Effect of magnetic field and temperature on the ferroelectric loop in MnWO4

TL;DR

This study investigates how magnetic field and temperature influence the ferroelectric loop in MnWO4, revealing magnetoelectric coupling despite low remanent polarization and complex dependence on external conditions.

Contribution

It provides new insights into the magnetic and thermal effects on ferroelectric properties of MnWO4, highlighting magnetoelectric coupling in this material.

Findings

Ferroelectricity observed in MnWO4 despite low polarization.

Ferroelectric loop shape varies with magnetic field and temperature.

Magnetoelectric coupling supported by magnetic field effects.

Abstract

The ferroelectric properties of MnWO4 single crystal have been investigated. Despite a relatively low remanent polarization, we show that the sample is ferroelectric. The shape of the ferroelectric loop of MnWO4 strongly depends on magnetic field and temperature. While its dependence does not directly correlate with the magnetocapacitance effect before the paraelectric transition, the effect of magnetic field on the ferroelectric polarization loop supports magnetoelectric coupling.