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.

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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