论文标题
二维M $ _2 $ n $ _3 $（M-Metal，n = S，SE，TE）化合物的磁性特性
Magnetic properties of two-dimensional M$_2$N$_3$ (M-metal, N=S,Se,Te) compounds
论文作者
论文摘要
使用\ textit {ab-initio}方法，我们研究具有化学计量的两维化合物的结构，电子和磁性特性m $ _2 $ n $ _3 $（m-metal，n = s，se，te）。我们的研究表明，具有CR，TI和MN的结构是稳定的，具有明显的结合能。而且，这样的结构是具有狭窄带隙的半导体。我们还表明，Cr $ _2 $ SE $ _3 $，CR $ _2 $ TE $ _3 $和MN $ _2 $ TE $ _3 $具有相当大的磁性时刻。磁各向异性能量的负值表明，这些材料可以在非零温度下保持铁磁有序，估计的居里温度在30-55 k的范围内。
Using \textit{ab-initio} methods we study structural, electronic and magnetic properties of two dimensional compounds with stoichiometry M$_2$N$_3$ (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 Cr$_2$Se$_3$, Cr$_2$Te$_3$ and Mn$_2$Te$_3$ 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.
