期刊
JOURNAL OF APPLIED PHYSICS
卷 128, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/5.0020622
关键词
-
资金
- Ministry of Science and Technology of China [2016YFA0301003]
- National Natural Science Foundation of China (NNSFC) [U1632272, 11574201, 11521404]
- Changjiang Scholars Program
- Shanghai talent program
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
Using high-resolution angle-resolved photoemission spectroscopy (ARPES), we have systematically studied the electronic structure of non-centrosymmetric PtBi 2 with a layered structure. Through photon energy dependent measurements, the surface state and the bulk state were identified. Consistent with the non-centrosymmetric structure, different surface states were observed on opposite PtBi 2(001) surfaces. Experimental bulk bands agree nicely with first-principle calculations. By combining ARPES and calculations, energy bands that contribute to triply degenerate point fermion were all detected. We also suggest that there are canted tube-like Fermi surfaces that might cause strong anisotropy in electronic transportation in non-centrosymmetric PtBi 2.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据