Magnetoelectric studies on polycrystalline FeVO4

TL;DR

This study investigates the magnetic, dielectric, and ferroelectric properties of polycrystalline FeVO4, revealing how external magnetic fields influence its multiferroic behavior and uncovering a secondary ferroelectric transition.

Contribution

It provides new insights into the magnetic and ferroelectric responses of FeVO4 under high magnetic fields, advancing understanding of its multiferroic mechanisms.

Findings

Magnetic field suppresses the original ferroelectric transition.

Strong magnetic field induces a secondary ferroelectric transition.

Field-induced metamagnetic transition observed at low temperatures.

Abstract

We report the magnetic, dielectric and ferroelectric properties of polycrystalline iron vanadate(FeVO4), which has been recently found to exhibit multiferroicity in low temperature with noncollinear magnetic orderings. The influence of external magnetic field up to 9T on these properties is systematically investigated. Besides the suppressing effect on the original ferroelectric transition, the strong magnetic field seems to induce a secondary ferroelectric transition at a slight lower temperature. And the corresponding magnetization measurement reveals a field-induced metamagnetic transition at low temperatures. Our results will help to clarify the complex magnetic structure and microscopic mechanism of multiferroicity in FeVO4.