High Magnetic Field Specific Heat in Cuprate Superconductors

ORAL

Abstract

We present new high magnetic field specific heat results for both underdoped YBCO 6.51 and overdoped LSCO. With these measurements we show that across different families of cuprates and across the superconducting-doping phase diagram, 45T does very little to suppress the d-wave superconducting gap. We discuss possible interpretations of the specific heat data through the use of bandstructure, previous high field magnetization measurements, and proposed Fermi surface reconstruction scenarios.

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Authors

  • Scott Riggs

    • Stanford University
    • Stanford University, Stanford, CA

  • Oskar Vafek

    • National High Magnetic Field Laboratory and Florida State University
    • National High Magnetic Field Lab
    • National High Magnetic Field Laboratory, Florida State University
    • National High Magnetic Field Laboratory and Department of Physics, Florida State University, Tallahassee, Florida 32306, USA
    • Florida State University, National High Magnetic Field Laboratory

  • Jon Betts

    • NHMFL, Pulsed Field facility, LANL, Los Alamos, NM
    • NHMFL, Pulsed Field Facility, LANL, Los Alamos, NM
    • National High Magnetic Field Lab

  • Fedor F. Balakirev

    • National High Magnetic Field Lab
    • Los Alamos National Laboratory, Los Alamos, NM, USA

  • Albert Migliori

    • National High Magnetic Field Lab

  • Doug Bonn

    • University of British Columbia
    • UBC

  • Walter Hardy

    • University of British Columbia
    • UBC

  • Ruixing Liang

    • University of British Columbia, Canada
    • UBC, Vancouver, Canada
    • UBC

  • Greg Boebinger

    • National High Magnetic Field Lab
    • NHMFL, FSU, Tallahassee, FL