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

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

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Abstract

The compound UTe2 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 UTe2, 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.

Original languageEnglish (US)
Article number076401
JournalPhysical review letters
Volume124
Issue number7
DOIs
StatePublished - Feb 19 2020

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Miao, L., Liu, S., Xu, Y., Kotta, E. C., Kang, C. J., Ran, S., Paglione, J., Kotliar, G., Butch, N. P., Denlinger, J. D., & Wray, L. A. (2020). Low Energy Band Structure and Symmetries of UTe2 from Angle-Resolved Photoemission Spectroscopy. Physical review letters, 124(7), [076401]. https://doi.org/10.1103/PhysRevLett.124.076401