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Absence of a bulk thermodynamic phase transition to a density wave phase in UTe<sub>2</sub>

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