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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.

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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