Journal
PHYSICAL REVIEW B
Volume 95, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.95.125204
Keywords
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Funding
- JSPS KAKENHI Grants [JP15H02105, JP25287079, JP15H05853, JP25107003]
- KEK-PF [2015S2-003]
- Program for Key Interdisciplinary Research
- Murata Science Foundation
- Grants-in-Aid for Scientific Research [15H02105, 15H05853, 26287071, 16H00993, 25287079, 25107003] Funding Source: KAKEN
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We have performed high-resolution angle-resolved photoemission spectroscopy (ARPES) on trigonal tellurium consisting of helical chains in the crystal. Through the band-structure mapping in the three-dimensional Brillouin zone, we found a definitive evidence for the band splitting originating from the chiral nature of crystal. A direct comparison of the band dispersion between the ARPES results and the first-principles band-structure calculations suggests the presence of Weyl nodes and tiny spin-polarized hole pockets around the H point. The present result opens a pathway toward studying the interplay among crystal symmetry, band structure, and exotic physical properties in chiral crystals.
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