论文标题
CR2GE2TE6中的多孔波段和准2二维,通过角度分辨光发射光谱研究
Multi hole bands and quasi 2-dimensionality in Cr2Ge2Te6 studied by angle-resolved photoemission spectroscopy
论文作者
论文摘要
在目前的工作中,我们通过光发射光谱和从头算计算,研究了二维(2D)Ferromagnet CR2GE2TE6的电子结构。我们的结果表明,在费米水平附近存在多个孔型带,表明材料可以通过操纵化学电位来支持高电导率。同样,我们的光子能量依赖性角度解析光发射实验表明,几个孔带表现出弱分散体,其各种入射光子能为其二维提供了实验性签名。这些发现可以为在电子设备中应用CR2GE2TE6的应用铺平道路。
In the present work, we investigate the electronic structure of the two-dimensional (2D) ferromagnet Cr2Ge2Te6 by photoemission spectroscopy and ab initio calculations. Our results demonstrate the presence of multiple hole-type bands in the vicinity of the Fermi level indicating that the material can support high electrical conductivity by manipulating the chemical potential. Also, our photon energy dependent angle resolved photoemission experiment revealed that several of the hole bands exhibit weak dispersion with varied incident photon energy providing experimental signature for its two dimensionality. These findings can pave the way for further studies towards the application of Cr2Ge2Te6 in electronic devices.