Unpinning the skyrmion lattice in MnSi

ORAL

Abstract

Materials hosting magnetic skyrmion lattices are promising materials for future spintronic applications. Given their potential technological use, it is important to understand the response of these magnetic textures under different physical and chemical environments. We have investigated the behavior of the skyrmion lattice in MnSi1-xGax single crystals with variations in the temperature and the magnitude and direction of a magnetic field using small angle neutron scattering and magnetization measurements. Our results indicate that the disorder caused by the inclusion of even of small amount of a heavier element such as Ga can substantially change the pinning of the skyrmion lattice when compared to pure MnSi.

*This material is based upon the work supported by the U.S. Department of Energy under EPSCoR Grant No. DE-SC0012432 with additional support from the Louisiana Board of Regents.
C. Dhital also acknowledges Department of Physics Kennesaw State University.

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Presenters

  • Chetan Dhital

    • Physics, Kennesaw State University/ Louisiana State University

Authors

  • Chetan Dhital

    • Physics, Kennesaw State University/ Louisiana State University

  • Lisa DeBeer-Schmitt

    • Neutron Science Directorate, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory

  • David P Young

    • Physics, Louisiana State University
    • Physics and Astronomy Department, Louisiana State University
    • Louisiana State University

  • John Ditusa

    • Louisiana State University
    • Physics and Astronomy Department, Louisiana State University