Low Energy Band Structure and Symmetries of UTe2 from Angle-Resolved Photoemission Spectroscopy

Year: 2020

Type: article

Abstract: The compound UTe_{2} has recently been shown to realize spin triplet superconductivity from a nonmagnetic normal state. This has sparked intense research activity, including theoretical analyses that suggest the superconducting order parameter to be topologically nontrivial. However, the underlying electronic band structure is a critical factor for these analyses, and remains poorly understood. Here, we present high resolution angle-resolved photoemission measurements covering multiple planes in the 3D Brillouin zone of UTe_{2}, revealing distinct Fermi-level features from two orthogonal quasi-one-dimensional light electron bands and one heavy band. The electronic symmetries are evaluated in comparison with numerical simulations, and the resulting picture is discussed as a platform for unconventional many-body order.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.124.076401

Authors: Lin Miao, Shouzheng Liu, Yishuai Xu, Erica C. Kotta, Chang-Jong Kang, Sheng Ran, Johnpierre Paglione, Gabriel Kotliar, Nicholas P. Butch, Jonathan D. Denlinger, L. Andrew Wray

Institutions: Southeast University, New York University, Rutgers, The State University of New Jersey, National Institute of Standards and Technology, NIST Center for Neutron Research, Maryland Quantum Materials Center, University of Maryland, College Park, Lawrence Berkeley National Laboratory, Advanced Light Source

Language: Latvian

Topic: Rare-earth and actinide compounds

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, Gordon and Betty Moore Foundation, National Institute of Standards and Technology, Office of Science, Materials Research Science and Engineering Center, Harvard University, Division of Materials Research, Basic Energy Sciences

OpenAlex ID: W2990215908