A structural investigation of an electronic transition into a nematic phase of a quantum material at high magnetic field (0-100 T)

ORAL

Abstract

Barium sodium osmate (Ba2NaOsO6) is a strongly spin-orbit coupled one 5d-electron system with a peculiar quantum-entangled long-range ordered (LRO) magnetic state. Furthermore, a field-induced phase transition into a novel nematic phase appears between paramagnetic (PM) and LRO state according to spectroscopic and specific-heat measurements. We present a set of high-precision single-crystal diffraction studies in persistent (~5T split-pair, 10T solenoid) and pulsed (30T solenoid) magnetic field complemented by Fiber-Bragg-Grating measurements of magnetostriction in non-destructive (60 T) and single-turn (100 T) coils to better understand nature of such a PM-to-nematic transition. An incisive discussion is presented considering structurally twinned nature of phases above and below this nematic transition.

* This research used resources of the APS, a US DOE Scientific User Facility, operated for the DOE Office of Science by Argonne National Laboratory under Contract DE-AC02-06CH11357.

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Presenters

  • Zahir Islam

    Argonne National Laboratory

Authors

  • Zahir Islam

    Argonne National Laboratory

  • Yuto Ishii

    University of Tokyo

  • Hajime Ishikawa

    The Institute of Solid State Physics, University of Tokyo

  • Akihiko Ikeda

    University of Electro-Communications

  • Oleh Ivashko

    DESY, Deutsches Elektronen-Synchrotron

  • Kotomi Shimbori

    University of Electro-Communications

  • Martin von Zimmermann

    DESY, Deutsches Elektronen-Synchrotron

  • Yasuhiro H Matsuda

    University of Tokyo, Institute for Solid State Physics, University of Tokyo

  • Koichi Kindo

    Institute for Solid State Physics, University of Tokyo, The Institute of Solid State Physics, University of Tokyo

  • Ulrich Welp

    Argonne National Laboratory

  • Ian R Fisher

    Stanford Univ, Stanford University