APS Logo

The spin-triplet topological superconductor UTe<sub>2</sub>

Invited

Abstract

Spin triplet superconductivity is found below 1.6 K in the correlated electron compound UTe2. This state features remarkably anisotropic and large upper critical field values, exceeding 35 T. At even higher magnetic fields, an unprecedented reentrant superconducting phase is stabilized, between 40 T and 65 T. Superconductivity coexists with strong magnetic fluctuations but unlike known uranium-based superconductors, UTe2 shows no evidence of long-range magnetism. However, the superconducting state spontaneously breaks time-reversal symmetry and supports chiral surface states.

–

Presenters

  • 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

Authors

  • 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