APRES study of the Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10}$ and HgBa$_2$CuO$_4$

ORAL

Abstract

The wide variation of the critical temperature of the high Tc superconductors is an important unresolved issue. For example, the optimal Tc of the mercury-based superconductor is 97 K, while that of the lanthanum-based superconductor is only 38K. In this study, we used the Angle Resolved Photoemission Spectroscopy (ARPES) to explore the electronic state of the Bi2223 (Tc = 110K) and Hg1201 (Tc = 94K) system; both of them have a very high Tc compared to other high Tc superconductors. Comparisons of their electronic structures to other high Tc superconductors with lower critical temperature will discussed.

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Authors

  • Wei-Sheng Lee

    • Department of Physics, Stanford University
    • Stanford Univ.

  • Donghui Lu

    • Stanford Synchrontron Radiation Laboratory

  • Wanli Yang

  • Xingjiang Zhou

    • Advanced Light Source, Lawrence Berkeley Lab

  • Kyle M. Shen

  • Guichuan Yu

    • Department of Physics, Stanford University

  • Martin Greven

    • Department of Applied Physics, Stanford University

  • Chengtian Lin

    • Max-Plank Institute, German

  • Jun-ichi Shimoyama

    • Department of Applied Chemistry, University of Tokyo, Japan

  • Zhi-Xun Shen

    • Department of Physics, Stanford University