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Correlating interfacial octahedral rotations with magnetism in (LaMnO3+δ)N/(SrTiO3)N superlattices

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  • Xiaofang Zhai

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

  • Long Cheng

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China)

  • Yang Liu

    (Argonne National Laboratory)

  • Christian M. Schlepütz

    (Argonne National Laboratory)

  • Shuai Dong

    (Southeast University)

  • Hui Li

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China)

  • Xiaoqiang Zhang

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China)

  • Shengqi Chu

    (Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences)

  • Lirong Zheng

    (Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences)

  • Jing Zhang

    (Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences)

  • Aidi Zhao

    (Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China
    Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China)

  • Hawoong Hong

    (Argonne National Laboratory)

  • Anand Bhattacharya

    (Argonne National Laboratory)

  • James N. Eckstein

    (University of Illinois at Urbana-Champaign)

  • Changgan Zeng

    (Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China
    Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China)

Abstract

Lattice distortion due to oxygen octahedral rotations have a significant role in mediating the magnetism in oxides, and recently attracts a lot of interests in the study of complex oxides interface. However, the direct experimental evidence for the interrelation between octahedral rotation and magnetism at interface is scarce. Here we demonstrate that interfacial octahedral rotation are closely linked to the strongly modified ferromagnetism in (LaMnO3+δ)N/(SrTiO3)N superlattices. The maximized ferromagnetic moment in the N=6 superlattice is accompanied by a metastable structure (space group Imcm) featuring minimal octahedral rotations (a−a−c−, α~4.2°, γ~0.5°). Quenched ferromagnetism for N

Suggested Citation

  • Xiaofang Zhai & Long Cheng & Yang Liu & Christian M. Schlepütz & Shuai Dong & Hui Li & Xiaoqiang Zhang & Shengqi Chu & Lirong Zheng & Jing Zhang & Aidi Zhao & Hawoong Hong & Anand Bhattacharya & James, 2014. "Correlating interfacial octahedral rotations with magnetism in (LaMnO3+δ)N/(SrTiO3)N superlattices," Nature Communications, Nature, vol. 5(1), pages 1-8, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5283
    DOI: 10.1038/ncomms5283
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