Probing the temperature scales in cuprate high-temperature superconductor by ultrafast angle-resolved photoemission

ORAL

Abstract

We used time- and angle-resolved photoemission (trARPES) to measure the non-equilibrium electronic states of Bi$_2$Sr$_2$CaCu$_2$O$_8$ high temperature superconductor. Detailed temperature and pump fluence dependent measurements were taken on these samples to study the temperature scales in cuprate, giving a phase diagram from the view of the non-equilibrium study. These results indicate that trARPES is a powerful tool in probing the quantum phase transitions in materials.

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Authors

  • Wentao Zhang

    • Lawrence Berkeley Natl Lab
    • UC Berkeley, LBNL

  • Chris Smallwood

    • University of California, Berkeley

  • Tristan Miller

    • University of California, Berkeley

  • Chris Jozwaik

    • Lawrence Berkeley Natl Lab

  • Hiroshi Eisaki

    • National Institute of Advanced Industrial Science and Technology, Japan

  • Dung-Hai Lee

    • University of California, Berkeley

  • Alessandra Lanzara

    • Lawrence Berkeley National Laboratory
    • University of California, Berkeley
    • UC Berkeley, LBNL
    • Physics Department, University of California, Berkeley and Materials Science Division, Lawrence Berkeley National Laboratory