Theoretical approach to control tetragonal distortion in Heuslers for large magnetocrystalline anisotropy

ORAL

Abstract

Recently, Heusler materials have got much attention due to the intriguing magnetic properties. However, most of them prefer cubic structure and consequently large magnetocrystalline anisotropy is not expected. To realize the large magnetocrystalline anisotropy in Heuslers, controlling tetragonal distortion plays an important role. In this study, we have successfully clarified the microscopic mechanisms of tetragonal distortion in Heusler materials by the electronic structure calculations on the basis of the density-functional theory. Subsequently, we have suggested a way to control the distortion [1].

[1] Y.-I. Matsushita, G. Madjarova, J.K. Dewhurst, S. Shallcross, C. Felser, S. Sharma, and E.K.U. Gross, J. Phys. D: Appl. Phys. 50 095002 (2017).

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Presenters

  • Yu-ichiro Matsushita

    • Department of Applied Physics, University of Tokyo
    • The University of Tokyo

Authors

  • Yu-ichiro Matsushita

    • Department of Applied Physics, University of Tokyo
    • The University of Tokyo

  • Galia Madjarova

    • University of Sofia

  • John Dewhurst

    • Theory, Max Planck Institute of Microstructure Physics
    • Max-Planck Institute of Microstructure Physics
    • Max Planck Inst Microstructure
    • Max-Planck-Institute of Microstructure Physics

  • Sangeeta Sharma

    • Theory, Max Planck Institute of Microstructure Physics
    • Max-Planck Institute of Microstructure Physics
    • Max Planck Inst Microstructure
    • Max-Planck-Institute of Microstructure Physics

  • Eberhard K Gross

    • Max Planck Institute of Microstructure Physics
    • Theory, Max-Planck-Institute of Microstructure Physics
    • Theory, Max Planck Institute of Microstructure Physics
    • Max-Planck Institute of Microstructure Physics
    • Max Planck Inst Microstructure
    • Max-Planck-Institute of Microstructure Physics