Photoemission in the strange metal region of Bi2212

ORAL

Abstract

In the study of cuprate high temperature superconductors, it remains a major task to understand the strange metal region above the pseudogap temperature. Angle-resolved photoemission spectroscopy (ARPES), a powerful surface-sensitive probe of electronic structure, becomes challenging in this region due to the worsened vacuum condition at high temperature. Using improved experimental setup, we perform high-precision ARPES measurements on Bi2212 deep in the strange metal region while free from sample aging. We will present the doping and temperature evolutions of spectral coherence in this region, and discuss the implication of our results on the generic phase diagram of high temperature superconductors.

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Presenters

  • Su-Di Chen

    Stanford University, Applied Physics, Stanford University

Authors

  • Su-Di Chen

    Stanford University, Applied Physics, Stanford University

  • Makoto Hashimoto

    SLAC, SLAC, Stanford University, SLAC National Laboratory, Stanford University, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, SSRL, SLAC

  • Yu He

    Stanford University, Applied Physics, Stanford University

  • Dongjoon Song

    National Institute of Advanced Industrial Science and Technology, AIST

  • Kejun Xu

    Stanford University and SLAC National Accelerator Laboratory, Stanford University, Applied Physics, Stanford University

  • Junfeng He

    Stanford University

  • Donghui Lu

    SSRL/SLAC, SLAC, SLAC, Stanford University, SLAC National Laboratory, Stanford University, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, SSRL, SLAC

  • Hiroshi Eisaki

    IAIST, Inst. of Advanced Industrial Science and Tech., Tsukuba,, National Institute for Advanced Industrial Science and Technology, National Institute of Advanced Industrial Science and Technology, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, AIST

  • Zhi-Xun Shen

    Stanford University, SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab, Stanford Univ, SIMIS, Stanford University, Applied Physics, Stanford Univ, Stanford University and SLAC National Accelerator Laboratory, Applied Physics, Stanford University