Neutron Scattering Study of the Magnetic Phase Transition in Rare-Earth Titanates

ORAL

Abstract

The Mott-insulating rare-earth (R) titanates (RTiO3) are known to exhibit a ferromagnetic-antiferromagnetic transition as the Ti-O-Ti bond angle increases in the GdFeO3-type distorted perovskite structure. Evidence for a similar transition at a critical doping xc~ 0.3 has been found in the solid-solution system Y1-xLaxTiO3. Although neutron scattering has been used to study the magnetic response of single crystals of the parent compounds YTiO3 and LaTiO3, such studies have not been reported for the solid solution. Here we report on our neutron scattering work on the magnetic order and excitations in doped system Y1-xLaxTiO3.

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Presenters

  • Sajna Hameed

    School of Physics and Astronomy, University of Minnesota Twin Cities

Authors

  • Sajna Hameed

    School of Physics and Astronomy, University of Minnesota Twin Cities

  • Guichuan Yu

    School of Physics and Astronomy, University of Minnesota, School of Physics and Astronomy, University of Minnesota Twin Cities, University of Minnesota

  • Karl Olson

    Department of Chemical Engineering and Materials Science, University of Minnesota Twin Cities

  • Masaaki Matsuda

    Oak Ridge National Lab, Neutron Scattering Division, Oak Ridge National Laboratory, Quantum Condensed Matter Division, Oak Ridge National Lab, Oak Ridge National Laboratory

  • Daniel Pajerowski

    Quantum Condensed Matter Division, Oak Ridge National Lab, NSD, Oak Ridge National Laboratory, Oak Ridge National Lab, Neutron Scattering Division, Oak Ridge National Laboratory

  • Martin Greven

    School of Physics and Astronomy, University of Minnesota, School of Physics and Astronomy, University of Minnesota Twin Cities, University of Minnesota