Angle resolved photoemission spectroscopy study of HgBa$_{2}$CuO$_{4+\delta}$

ORAL

Abstract

HgBa$_{2}$CuO$_{4+\delta}$(Hg1201) is a model cuprate for scattering, optical, and transport experiments, but angle-resolved photoemission spectroscopy (ARPES) data are still lacking owing to the absence of a charge-neutral cleavage plane. We report on progress in achieving the optimal experimental conditions where quasiparticles can be observed in the near-nodal region. The superconducting gap, Fermi surface, and nodal kink were measured and quantified by ARPES for the first time in Hg1201, providing a crucial momentum space complement to other experimental probes.

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Authors

  • I.M. Vishik

    • Massachusetts Institute of Technology

  • N. Barisic

    • Service de Physique de l'\'Etat Condense; University of Minnesota; Vienna University of Technology

  • Y. Li

    • Peking University

  • Guichuan Yu

    • University of Minnesota

  • Xudong Zhao

    • State Key Lab of Inorganic Synthesis and Preparative Chemistry; University of Minnesota

  • W.S. Lee

    • SLAC National Accelerator Laboratory

  • W. Meevasana

    • Suranaree University of Technology

  • T.P. Devereaux

    • SLAC National Accelerator Laboratory

  • M. Greven

    • University of Minnesota

  • Z.-X. Shen

    • Stanford University; SLAC National Accelerator Laboratory