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