Fermiology of Chiral Cadmium Diarsenide CdAs₂, a Candidate for Hosting Kramers-Weyl Fermions.

ABSTRACT: Nonmagnetic chiral crystals are a new class of systems hosting Kramers-Weyl Fermions, arising from the combination of structural chirality, spin-orbit coupling (SOC), and time-reversal symmetry. These materials exhibit nontrivial Fermi surfaces with SOC-induced Chern gaps over a wide energy range, leading to exotic transport and optical properties. In this study, we investigate the electronic structure and transport properties of CdAs₂, a newly reported chiral material. We use synchrotron-based angle-resolved photoelectron spectroscopy (ARPES) and density functional theory (DFT) to determine the Fermiology of the (110)-terminated CdAs₂ crystal. Our results, together with complementary magnetotransport measurements, suggest that CdAs₂ is a promising candidat

SUBMITTER: Mazzola F 

PROVIDER: S-EPMC10084463 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature