FeI2/Al2Te3 van der Waals heterostructure

Electric-field reversible magnetism

A 2D vdW multiferroic heterostructure enabling reversible switching of half-metallicity and magnetic order near room temperature via ferroelectric polarization.

Xie, Shuhong · Zou, Daifeng

Physical Chemistry Chemical Physics 2026

Advantages

Pronounced magnetoelectric coupling near room temperature

Reversible transition from semiconducting to half-metallic in FeI2 upon polarization switching

Electric-field-driven antiferromagnetic-to-ferromagnetic phase transition

Precisely controllable magnetic anisotropy energy