Magnetic Correlations in the Quasi-2D Semiconducting Ferromagnet CrGeTe<sub>3</sub>

ORAL

Abstract

The quasi-two-dimensional, semiconducting ferromagnets CrSiTe3 and CrGeTe3 have been studied as candidates for spintronics applications due the relatively accessible transition temperatures and large magnetic moments. While CrSiTe3 has been more studied due to the ease of growing crystals, CrGeTe3 is more interesting due to the higher transition temperature TC = 61 K. In this study, we use neutron scattering to measure the static and dynamic magnetic properties. Neutron diffraction was used to study the 3D order below TC, as well as two dimensional static correlations above the transition. Preliminary inelastic measurements shed light on the nature of the spin gap and magnetic correlations that drive the magnetism in this material, which can be contrasted to previous work on CrSiTe3.

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Presenters

  • Travis Williams

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory

Authors

  • Travis Williams

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory

  • Adam Aczel

    • Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Oakridge National Lab

  • Brenden Ortiz

    • University of California, Santa Barbara
    • Materials Engineering, University of California, Santa Barbara
    • Colorado School of Mines
    • California NanoSystems Institute/Materials, University of California, Santa Barbara

  • Paul Sarte

    • California NanoSystems Institute/Materials, University of California, Santa Barbara
    • University of California, Santa Barbara

  • Stephen Wilson

    • University of California, Santa Barbara
    • Materials Department, University of California, Santa Barbara
    • Materials Engineering, University of California, Santa Barbara
    • California NanoSystems Institute/Materials, University of California, Santa Barbara