Large Intrinsic Valley Polarization and High Curie Temperature in Stable Two-dimensional Ferrovalley YX${}_2$(X=I,Br and Cl)

Wen-Yu Liu, Bo Huang, Xu-Cai Wu +4

Ferrovalley materials with spontaneous valley polarization are crucial to valleytronic application. Based on first-principles calculations, we demonstrate that two-dimensional (2D)…