Origin of multiple quantum oscillation frequencies from single carrier nodal pocket in the underdoped cuprate superconductor YBCO

ORAL

Abstract

Quantum oscillations are measured in the underdoped high $T_{\rm c}$ cuprate superconductor YBa$_2$Cu$_3$O$_{6+x}$, revealing multiple frequencies. An extended study over a broad angular range and magnetic field range up to 95 T accompanied by detailed harmonic analysis is presented, establishing the multiple frequencies to arise from Fermi surface reconstruction yielding a single carrier nodal pocket. Scenarios are presented for the origin of multiple frequencies from this nodal pocket.

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Authors

  • Suchitra E. Sebastian

    University of Cambridge

  • Gil Lonzarich

    University of Cambridge

  • Neil Harrison

    NHMFL, Los Alamos, Los Alamos National Laboratory

  • M.M. Altarawneh

    NHMFL, Los Alamos

  • R. Liang

    Dept. of Physics and Astronomy, University of British Columbia, University of British Columbia

  • Doug Bonn

    University of British Columbia, UBC

  • Walter Hardy

    University of British Columbia, UBC