Absence of a bulk thermodynamic phase transition to a density wave phase in UTe2

ORAL

Abstract

Superconductors often host multiple competing and intertwined orders, such as spin and charge density waves. Recent scanning tunneling microscopy measurements suggest that the heavy-fermion superconductor UTe2 has both Cooper pair and charge density waves (PDWs and CDWs, respectively). Using high-resolution resonant ultrasound spectroscopy, we find here no evidence for a thermodynamic phase transition to a bulk CDW state, also ruling out a bulk PDW. These measurements highlight the need to distinguish between bulk and surface physics in UTe2.

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Publication: Phys. Rev. B 110, 144507

Presenters

  • Florian Theuss

    Cornell University, Stanford University

Authors

  • Florian Theuss

    Cornell University, Stanford University

  • Avi Shragai

    Cornell University

  • Gael Grissonnanche

    Ecole Polytechnique

  • Luciano B Peralta

    Universidad de Los Andes

  • Gregorio de la Fuente Simarro

    MIT

  • Ian M Hayes

    University of Maryland College Park

  • Shanta R Saha

    University of Maryland College Park

  • Yun Suk Eo

    Texas Tech University

  • Alonso Suarez

    University of Maryland, College Park, University of Maryland College Park

  • Andrea C Salinas

    University of California, Santa Barbara, University of California Santa Barbara, University of Maryland College Park

  • Ganesh Pokharel

    Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A., University of California, Santa Barbara

  • Stephen D Wilson

    University of California, Santa Barbara, Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A., University of California at Santa Babara

  • Nicholas P Butch

    National Institute of Standards and Technology (NIST)

  • Johnpierre Paglione

    University of Maryland College Park, Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA

  • Brad J Ramshaw

    Cornell University