Valence and moment of Sm in SmB$_6$ under pressure

ORAL

Abstract

We studied the valence and magnetic moment of Sm ions in the mixed-valent compound SmB$_6$ via x-ray spectroscopy. Using diamond anvil cells, the pressure dependence of these properties was measured to at least 20 GPa. We will discuss pressure-induced magnetic order in this compound, as well as ramifications for the sought-after ambient-pressure topological state.

–

Authors

  • Nicholas Butch

    • National Institute of Standards and Technology
    • NIST Center for Neutron Research

  • Jason Jeffries

    • Lawrence Livermore National Laboratory

  • Paul Syers

    • CNAM, University of Maryland

  • Johnpierre Paglione

    • CNAM, University of Maryland

  • Yuming Xiao

    • Carnegie Institute of Washington

  • Paul Chow

    • Carnegie Institute of Washington