Effect of Lead Doping on Inversion Symmetry Breaking in Cuprates

ORAL

Abstract

The CuO2 planes of high-temperature cuprate superconductors have long been the focus of theoretical models, with less importance places on out-of-plane characteristics, due to them being the known source of superconductive states. However, to explain the helical spin texture found in Bi-based cuprates, out-of-plane characteristics must be considered. It is known that breaking of local inversion symmetry can create an out- of-plane electric field in cuprates. We focus on measuring the effect of the electric field that arises due to the incommensurate modulation on the spin polarization of Bi2Sr2CaCu2O8+δ (Bi2212). We show how the momentum-dependent spin polarization is modified through the addition of Pb dopants which decrease the incommensurate modulation. Our results give a clue to the complex interplay of spin orbit coupling and lattice characteristics.

*We would like to thank the Department of Energy for support for this work.

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Presenters

  • Kayla Currier

    • Lawrence Berkeley National Laboratory
    • Physics, University of California Berkeley

Authors

  • Kayla Currier

    • Lawrence Berkeley National Laboratory
    • Physics, University of California Berkeley

  • Chiu-Yun Lin

    • Physics, University of California Berkeley

  • Kenneth Gotlieb

    • Triple Ring Technologies, Inc.
    • Applied Science and Technology, University of California Berkeley

  • Chris Jozwiak

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

  • Koshi Kurashima

    • Applied Physics, Tohuku University

  • Hiroshi Eisaki

    • National Institute of Advanced Industrial Science and Technology (AIST)
    • National Institute of Advanced Industrial Science and Technology

  • Alessandra Lanzara

    • University of California, Berkeley
    • Department of Physics, University of California
    • Physics, University of California, Berkeley
    • Lawrence Berkeley National Laboratory
    • Department of Physics, University of California Berkeley
    • Physics, University of California Berkeley
    • Physics, UC Berkeley