Unusual Electronic Structure of Dirac Material BaMnSb$_2$ Revealed by Angle-Resolved Photoemission Spectroscopy
- Resource Type
- Working Paper
- Authors
- Rong, Hongtao; Zhou, Liqin; He, Junbao; Song, Chunyao; Xu, Yu; Cai, Yongqing; Li, Cong; Wang, Qingyan; Zhao, Lin; Liu, Guodong; Xu, Zuyan; Chen, Genfu; Weng, Hongming; Zhou, X. J.
- Source
- Chin. Phys. B, 2021, 30 (6): 067403
- Subject
- Condensed Matter - Materials Science
- Language
High resolution angle resolved photoemission measurements and band structure calculations are carried out to study the electronic structure of BaMnSb$_2$. All the observed bands are nearly linear that extend to a wide energy range. The measured Fermi surface mainly consists of one hole pocket around $\Gamma$ and a strong spot at Y which are formed from the crossing points of the linear bands. The measured electronic structure of BaMnSb$_2$ is unusual and deviates strongly from the band structure calculations. These results will stimulate further efforts to theoretically understand the electronic structure of BaMnSb$_2$ and search for novel properties in this Dirac material.
Comment: 14 pages, 5 figures