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