Hidden Spin-Momentum Texture in High Tc Cuprate Superconductor

ORAL

Abstract

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. By using spin- and angle-resolved photoemission spectroscopy, we unveiled a nontrivial spin-momentum locking pattern in Bi2Sr2CaCu2O8+x. The asymmetry of the spin-up and spin-down channel suggests the strength of SOC is in the same order of the bilayer interaction. This poses an intriguing question of how the high temperature superconducting state emerges in the presence of SOC.

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Presenters

  • Chiu-Yun Lin

    University of California, Berkeley

Authors

  • Chiu-Yun Lin

    University of California, Berkeley

  • Kenneth Gotlieb

    Applied Sciences and Technology, University of California, Berkeley, University of California, Berkeley

  • Maksym Serbyn

    IST Austria, Institution of Science and Technology Austria

  • Wentao Zhang

    School of Physics and Astronomy, Shanghai Jiao Tong University, Shaighai Jiao Tong University, China

  • Christopher L Smallwood

    San Jose State University

  • Chris Jozwiak

    Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA 94720, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, ALS, Lawrence National Berkeley Laboratory, Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab, Berkeley, USA, Advanced Light Source (ALS), E. O. Lawrence Berkeley National Laboratory, USA, Advanced Light Source, E. O. Lawrence Berkeley National Laboratory

  • Hiroshi Eisaki

    National Institute of Advanced Industrial Science and Technology, AIST, National Inst. Adv. Industrial Science & Technology, Tsukuba, National Institute of Advanced Industrial Science and Technology), Electronics and Photonics Research Institute National Institute of Advanced Industrial Science and Technology, Japan

  • Ashvin Vishwanath

    Harvard Univ, Physics Department, Harvard University, Department of Physics, Harvard University, Harvard University, Physics, Harvard University, Havard University

  • Zahid Hussain

    Advanced Light Source, Lawrence Berkeley National Laboratory, Advanced Light Source, Lawrence Berkeley Laboratory, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab, Berkeley, USA

  • Alessandra Lanzara

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