凝聚态物理
迪拉克费米子
各向异性
物理
Dirac(视频压缩格式)
散射
声子
联轴节(管道)
对称(几何)
有效质量(弹簧-质量系统)
电子结构
电子
半金属
费米子
量子力学
材料科学
带隙
几何学
数学
中微子
冶金
作者
Yanfeng Ge,Wenhui Wan,Yong Liu,Ying Zhang
标识
DOI:10.1088/1361-648x/aa8162
摘要
Recently, the type-II Dirac fermion, a new topological state, has been proposed in the Al3V family. It breaks Lorentz symmetry and has unique physical properties. We use first-principles calculations to investigate electronic transport limited by phonon scattering. The electronic resistivity in the xy plane is estimated to be 24.1 [Formula: see text] cm for Al3V and is much lower than that along the z direction. The heavy electronic effective mass along the z direction and the main electron-phonon coupling, originating from the phonon modes vibrating along the z direction, lead to anisotropic electronic transport, which is also found in other members of the Al3V family.
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