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Hidden Spin-Momentum Texture in High Tc Cuprate Superconductor

ORAL

Abstract

Cuprate supercoductor is one of the most well studied compounds. Even so, experiments discover new results after thirty years of intense study by the community. Spin-orbit coupling (SOC) in cuprate superconductors was not a focus of condensed matter research due to the negligible SOC value of the conducting orbitals comparing with the strong electronic correlations and its centrosymmetric crystal structure. However, using spin- and angle-resolved photoemission spectroscopy, we directly probed the spin-momentum entangled texture in Bi2Sr2CaCu2O8+x. The unexpectedly strong spin asymmetry in such globally inversion-symmetric crystal highlights the importance of the local environment that carriers see, meanwhile, poses the intriguing question of how the high-temperature superconducting state emerges in the presence of this nontrivial spin texture.

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Presenters

  • Chiu-Yun Lin

    University of California, Berkeley

Authors

  • Chiu-Yun Lin

    University of California, Berkeley

  • Kenneth Gotlieb

    University of California, Berkeley

  • Maksym Serbyn

    Institute of Science and Technology, Austria, IST Austria

  • Wentao Zhang

    Physics and Astronomy, Shanghai Jiao Tong University

  • Christopher Smallwood

    Physics and Astronomy, San Jose State University

  • Chris Jozwiak

    Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Advanced Light Source, Lawrence Berkeley National Laboratory, Advanced Light Source, E. O. Lawrence Berkeley National Laboratory, ALS, Lawrence Berkeley National Lab, Advanced Light Source

  • Zahid Hussain

    Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley Lab., ALS, Lawrence Berkeley National Laboratory

  • Ashvin Vishwanath

    Harvard University, Physics, Harvard University, Department of Physics, Harvard University

  • Alessandra Lanzara

    University of California, Berkeley, Physics, University of California, Berkeley