K. Nakayama, M. Kuno, K. Yamauchi, S. Souma, K. Sugawara, T. Oguchi, T. Sato, T. Takahashi
Published 2017-03-03Version 1
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.
Comments: 6 pages, 3 figures; accepted for publication in PRB
Singlet Fission in Chiral Carbon Nanotubes: Density Functional Theory Based Computation
Critical comparison of electrode models in density functional theory based quantum transport calculations
Transport through correlated systems with density functional theory
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