Elastic moduli across the superconducting and pseudogap phase boundaries in four cuprate compounds

ORAL

Abstract

A detailed understanding of the physics of the cuprate superconductors relies on an experimental determination of the thermodynamic phase diagram. Resonant ultrasound spectroscopy (RUS) is a unique thermodynamic probe, capable of measuring part per million changes in elastic moduli, and has access to symmetry information. Here we present a symmetry analysis of changes in the elastic moduli across the superconducting and psedogap phase boundaries in several classes of cuprates: YBCO, LSCO, Hg-1201, and Tl-2201.

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Authors

  • Brad Ramshaw

    Los Alamos National Laboratory, Pulsed Field Facility, NHMFL, Los Alamos National Laboratory

  • Arkady Shekhter

    Pulsed Field Facility, NHMFL, Los Alamos National Laboratory

  • Jon Betts

    Pulsed Field Facility, NHMFL, Los Alamos National Laboratory

  • Albert Migliori

    Los Alamos National Laboratory, Pulsed Field Facility, NHMFL, Los Alamos National Laboratory, Los Alamos National Lab