The intrinsic magnetic structure and ordering of multiferoic h-LuFeO$_{3}$ Films

ORAL

Abstract

It has been previously reported that h-LuFeO$_{3}$ films are ferroelectric and magnetically ordered above room temperature [1]. During this talk, we discuss our recent results [2] on well characterized molecular beam epitaxy grown films. While we find the films are ferroelectric at room temperature, we find that films grown on both YSZ (111) and Al$_{2}$O$_{3}$ (0001) substrates are magnetically ordered well below room temperature. The magnetic order is the standard 120 degree structure found in these materials, with a canted moment out of the a-b plane. We find that the magnetic structure of these films is consistent with the possibility of switching this small canted moment with an electric field [3]. \\[4pt] [1] W. Wang et al, Phys. Rev. Lett. 100, 237601 (2013).\\[0pt] [2] Steven M. Disseler et al, arXiv:1411.1694 (2014).\\[0pt] [3] H. Das et al, Nat. Commun. 5, 2998 (2014).

Authors

  • William Ratcliff

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

  • Steven Disseler

    NIST, NIST Center for Neutron Research

  • Julie A. Borchers

    NIST, NIST Center for Neutron Research

  • Charles Brooks

    Cornell University

  • Julia Mundy

    Cornell University

  • Jarrett Moyer

    University of Illinois at Urbana-Champaign

  • Daniel Hillsberry

    Boise State University

  • Eric Thies

    Boise State University

  • Dmitri A. Tenne

    Boise State University, Department of Physics, Boise State University, Boise, ID 83725, USA

  • John Heron

    Cornell University

  • James Clarkson

    University of California, Berkeley

  • Gregory Stiehl

    Cornell University, Cornell University, Ithaca, New York, 14853

  • Peter Schiffer

    University of Illinois at Urbana-Champaign, Department of Physics, University of Illinois at Urbana-Champaign

  • David Muller

    Cornell University

  • Darrell Schlom

    Cornell University