Magnetic excitations in a 5d-based double perovskite Ba$_2$FeReO$_6$

ORAL

Abstract

There is great interest in double perovskite materials, from a fundamental viewpoint of studying correlated electron magnetism as well as spintronics applications. We report theoretical calculations and experimental powder inelastic neutron scattering data on magnetic excitations in the 5d-based double perovskite Ba$_2$FeReO$_6$. We find evidence of multiple spin wave branches consistent with local moment magnetism on Fe sublattice coexisting with highly correlated and spin-orbit coupled local moments on Re.

*We acknowledge funding from NSERC, CIfAR, and CRC.

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Authors

  • Arun Paramekanti

    • University of Toronto

  • K. Plumb

    • University of Toronto

  • A. Cook

    • University of Toronto

  • P. Clancy

    • University of Toronto

  • A. Kolensikov

    • University of Toronto

  • Young-June Kim

    • University of Toronto

  • B.-C. Jeon

    • Seoul National University

  • T.-W. Noh

    • Seoul National University