Emergence of skyrmions from rich parent phases in the molybdenum nitrides

ORAL

Abstract

We report a new family of skyrmion materials originated from the antisymmetric Dzyaloshinskii-Moriya (DM) interactions. Based on the symmetric tensor technique, the molybdenum nitrides with the $\beta $-manganese structure, A2Mo3N with A$=$Fe, Co, Rh, are predicted to support the skymion phase. This predication is directly proved in doped FexCo$_{1-x}$Rh$_{0.5}$Mo$_{3}$N components by high resolution Lorentz transmission electron imaging. Interestingly, the parent compounds Fe2Mo3N, Co2Mo3N, and Rh2Mo3N exhibit ferromagnetic, anti-ferromagnetic, and even superconducting orderings respectively. Magnetism in these parent phases is theoretically clarified by the first principle calculations, where the corrected nature of the magnetism is revealed..

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Authors

  • Jiadong Zang

    • Univ of New Hampshire

  • Wei Li

    • Shanghai Institute of Microsystem and Information Technology, CAS

  • Chiming Jin

    • High Magnetic Field Laboratory, CAS

  • Renchao Che

    • Fudan University

  • Wensen Wei

    • High Magnetic Field Laboratory, CAS

  • Langsheng Lin

    • High Magnetic Field Laboratory, CAS

  • Lei Zhang

    • High Magnetic Field Laboratory, CAS

  • Haifeng Du

    • High Magnetic Field Laboratory, CAS

  • Mingliang Tian

    • High Magnetic Field Laboratory, CAS