Magnetic anisotropy analysis on recent Cr layered compound with large magnetic anisotropy and the role of 5p spin orbit interaction.

ORAL

Abstract

Recently, 2D ferromagnetism on single layer Cr based layered compounds is discovered. These systems circumvent the Mermin-Wagner theorem by having large magnetic anisotropy. However, based on the conventional anisotropy mechanisms, it is very hard to have that much magnetic anisotropy (~ 1 T) in Cr3+ (d3) systems. We have studied their magnetic anisotropy by Cr L-edges XMCD and 4 site Full multiplet cluster calculation and found that the single ion anisotropy is not a major origin of the anisotropy. Instead, the spin-orbit interaction of 5p orbitals (~ 500 meV for Te, ~ 630 meV for I) plays an important role.

*This research was supported by Study for Nano Scale Optomaterials and Complex Phase Materials (2016K1A4A4A01922028) through NRF funded by MSIP of Korea

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Presenters

  • Donghwan Kim

    • Physics, Pohang Univ of Sci & Tech

Authors

  • Donghwan Kim

    • Physics, Pohang Univ of Sci & Tech

  • Kyoo Kim

    • Max Planck-POSTECH Korea Research Initiative, Pohang University of Science and Technology
    • Korea Foundation for Max Planck POSTECH/Korea Research Initiative
    • Department of Physics, Pohang University of Science and Technology
    • Max Planck-POSTECH/Hsinchu Center

  • Kyung-Tae Ko

    • Korea Foundation for Max Planck POSTECH/Korea Research Initiative
    • Max Planck POSTECH/KOREA Research Inotiative

  • Jun Sung Kim

    • Physics, POSTECH
    • Physics, Pohang Univ of Sci & Tech
    • POSTECH
    • Department of Physics, POSTECH
    • Physics, Postech
    • Department of Physics, Pohang University of Science and Technology
    • Pohang University of Science and Technology

  • Younghak Kim

    • Pohang Accelerator Laboratory

  • Jae-Young Kim

    • Pohang Accelerator Laboratory

  • Sang-Wook Cheong

    • Rutgers University
    • Department of Physics and Astronomy, Rutgers University
    • Department of Physics and Astronomy, Rutgers, The State University of New Jersey
    • Physics, Rutgers University
    • Physics and Astronomy, Rutgers University
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University
    • Physics and Astronomy, Rutgers Univ.
    • Rutgers Univ
    • Physics, Rutgers Univesity
    • Department of Physics, Rutgers University
    • Physics and Astronomy, Rutgers Center for Emergent Materials
    • Department of Physics & Astronomy , Rutgers University

  • Jae-Hoon Park

    • Physics, Pohang Univ of Sci & Tech