Effect of magnetic field and temperature on the ferroelectric loop in MnWO 4

The ferroelectric properties of ${\text{MnWO}}_{4}$ 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 ${\text{MnWO}}_{4}$ 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.