Spherical Polarization Analysis for Measuring Spin Hall Materials

ORAL

Abstract

Topological Insulators (TI) combine charge order and spin-orbit coupling leading to an insulating bulk, yet topological surface conduction states. Here we present the results of polarized neutron scattering experiment(s) on single crystal of Bi2Se3, showing a cross-interaction of the polarized surface conduction states with the incident neutron beam polarization. This is significant as it could open possibilities of Topological Insulators being used as polarized neutron detectors and allow a novel probe for TI surface states.

*This work is supported by Department of Energy(DOE) BES grant DE-SC0022986. Neutron scattering experiment(s) are performed in Oak Ridge National Laboratory(ORNL) in High Flux Isotope Reactor(HFIR) and Spallation Neutron Source(SNS) facilities.

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Presenters

  • Guga Khundzakishvili

    • Purdue University

Authors

  • Guga Khundzakishvili

    • Purdue University

  • Jacob Tosado

    • Oak Ridge National Laboratory

  • Peter Jiang

    • Oak Ridge National Laboratory

  • Barry Winn

    • Oak Ridge National Laboratory
    • Oak Ridge National Laboratory, Oak Ridge, Tennessee
    • ORNL

  • Gavin L Hester

    • Brock University

  • Colten Koogler

    • Naval Surface Warfare Center, Crane Division

  • Robert Cooper

    • Naval Surface Warfare Center, Crane Division

  • Neel Jain

    • Naval Surface Warfare Center, Crane Division

  • Kevin Goodman

    • Naval Surface Warfare Center, Crane Division

  • Wei Xie

    • Purdue University

  • Yong P Chen

    • Purdue University

  • Arnab Banerjee

    • Purdue University