Ferromagnetic order at 298 K in Cr$_{0.005}$Sn$_{0.995}$Te

ORAL

Abstract

We observe ferromagnetic ordering at 298 K by magnetic susceptibility measurements. In addition we observe a structural transition at 98 K that has been attributed to ferroelectricity. Transmission electron microscopy at 300 K shows a modulated cubic structure thereby challenging the heretofore accepted B1 rocksalt structure. Ramifications of these results plus Fermi surface measurements made by angle resolved photoemission using synchrotron radiation will be given.

*Work performed under the auspices of the USDOE.

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Authors

  • Jason C. Lashley

    • Los Alamos National Laboratory

  • James L. Smith

  • James E. Gubernatis

    • Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico

  • Roland K. Schulze

  • Bogdan Mihaila

    • Los Alamos National Laboratory, Los Alamos, USA

  • Robert D. Field

    • Los Alamos National Laboratory

  • Cyril P. Opeil

    • Boston College

  • Peter B. Littlewood

    • Cavendish Laboratory

  • Eli Rotenberg

    • Advanced Light Source Lawrence Berkeley National Laboratory Berkeley, CA 94720 U.S.

  • Aaron Bostwick

    • Advanced Light Source Lawrence Berkeley National Laboratory Berkeley, CA 94720 U.S.
    • Advanced Light Source Berkeley