Magnetic properties of two-dimensional M2N3 (M-metal, N=S,Se,Te) compounds
Abstract
Using ab-initio methods we study structural, electronic and magnetic properties of two dimensional compounds with stoichiometry M2N3 (M-metal, N=S,Se,Te). Our study shows that structures with Cr, Ti, and Mn are stable, with significant binding energy. Also, such structures are semiconductors with narrow band gaps. We also show that Cr2Se3, Cr2Te3 and Mn2Te3 have considerable magnetic moments. The negative values of magnetic anisotropy energy suggest, that these materials can maintain ferromagnetic ordering in non-zero temperatures with estimated Curie temperatures in the range of 30-55 K.
0