Quasi-2D Fermi surface in the anomalous superconductor UTe₂.

ABSTRACT: The heavy fermion paramagnet UTe₂ exhibits numerous characteristics of spin-triplet superconductivity. Efforts to understand the microscopic details of this exotic superconductivity have been impeded by uncertainty regarding the underlying electronic structure. Here we directly probe the Fermi surface of UTe₂ by measuring magnetic quantum oscillations in pristine quality crystals. We find an angular profile of quantum oscillatory frequency and amplitude that is characteristic of a quasi-2D Fermi surface, which we find is well described by two cylindrical Fermi sheets of electron- and hole-type respectively. Additionally, we find that both cylindrical Fermi sheets possess considerable undulation but negligible small-scale corrugation, which may allow for their near-nes

SUBMITTER: Eaton AG 

PROVIDER: S-EPMC10764345 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature