Band structure and local electronic correlations in triplet superconductor UTe<sub>2</sub>

 · Invited

Abstract

The compound UTe2 has recently been found to realize spin triplet superconductivity from a non-magnetic normal state. This has sparked intense research activity, including analyses that suggest the superconducting order parameter to be topologically nontrivial. However, the electronic band structure and local correlations that underlie these phenomena are challenging to attribute with out direct measurements. I will present high resolution angle resolved photoemission (ARPES) measurements covering multiple planes in the 3D Brillouin zone of UTe2, revealing distinct Fermi pockets from two light electron bands and one heavy band. I will also present data showing atomic multiplet excitations and signatures of electronic symmetry, as a further basis for discussing many-body ordering instabilities.

*This research used resources of the Advanced Light Source, which is a DOE Office of Science User Facility under contract no. DE-AC02-05CH11231. Work at NYU was supported by the MRSEC Program of the National Science Foundation under Award Number DMR-1420073. Synthesis and analysis instrumentation at NYU is supported by NSF under MRI-1531664, and by the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4838. This work was supported by the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4419 (synthesis), and the Maryland Center for Nanophysics and Advanced Materials.

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Presenters

  • Lewis Wray

    • Department of Physics, New York University, New York, NY, USA
    • New York Univ NYU

Authors

  • Lin Miao

    • Department of Physics, New York University, New York, NY, USA
    • Southeast University

  • Shouzheng Liu

    • New York Univ NYU

  • Yishuai Xu

    • Department of Physics, New York University, New York, NY, USA
    • New York Univ NYU

  • Erica Kotta

    • Department of Physics, New York University, New York, NY, USA
    • New York Univ NYU

  • Chang-Jong Kang

    • Department of Physics and Astronomy, Rutgers University
    • Rutgers University, New Brunswick

  • Sheng Ran

    • National Institute of Standards and Technology
    • NIST Center for Neutron Research, National Institute of Standards and Technology, University of Maryland, College Park
    • Quantum Materials Center, Department of Physics, University of Maryland College Park
    • Physics, Washington University in St. Louis
    • Maryland Quantum Materials Center and Department of Physics, University of Maryland, College Park
    • Department of Physics and Astronomy, University of Maryland, College Park
    • Washington University
    • Physics Department, Washington University in St. Louis
    • NIST Center for Neutron Research, National Institute of Standards and Technology
    • Washington University in St. Louis
    • Department of Physics, University of California, San Diego
    • University of Maryland, College Park

  • Johnpierre Paglione

    • University of Maryland, College Park
    • Maryland Quantum Materials Center, Department of Physics, University of Maryland
    • Quantum Materials Center, Department of Physics, University of Maryland College Park
    • Quantum Materials Center, University of Maryland, College Park
    • Maryland Quantum Materials Center and Department of Physics, University of Maryland, College Park
    • University of Maryland

  • Yi-De Chuang

    • Advanced Light Source, Lawrence Berkeley National Laboratory
    • Advanced Light Source, LBNL

  • Gabriel Kotliar

    • Rutgers University, New Brunswick
    • Rutgers University, USA
    • Department of Physics and Astronomy, Rutgers University
    • Rutgers University and Brookhaven National Laboratories

  • Nicholas Butch

    • National Institute of Standards and Technology
    • NIST Center for Neutron Research, National Institute of Standards and Technology
    • Center for Neutron Research, National Institute of Standards and Technology
    • NCNR, National Institute for Standard and Technology
    • NIST/University of Maryland
    • Center of Neutron Research, National Institute of Standards and Technology, NIST
    • Center for Neutron Research, National Institute of Standards and Technology, National Institute of Standards and Technology
    • NIST Center for Neutro Research, National Institute of Standards and Technology
    • University of Maryland

  • Jonathan Denlinger

    • Materials Sciences Division, Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Laboratory
    • Advanced Light Source
    • Advanced Light Source, LBNL
    • Advanced light source
    • Advanced Light Source, Lawrence Berkeley National Lab

  • Lewis Wray

    • Department of Physics, New York University, New York, NY, USA
    • New York Univ NYU