Observation of Phase-transition-induced magnetism modulation in metal/VO<sub>2</sub> heterostructures

ORAL

Abstract

High efficiency manipulation of magnetic properties is of great interest for fundamental science and applications. However, facile strategies with more modulating freedom are are still highly desired. In this work, NiFe (easy axis in-plane) and Co/Pt multilayers (easy axis out-of-plane) are combined with a strongly correlated electron systems VO2 to fabricate newly artificial metal/oxide heterostructures. [1, 2] It endows the spintronic material with extraordinary multiple control ability of magnetism (e.g., anisotropy, magnetization, etc.) via light or temperature change based on the interfacial strain coupling. Utilizing its multiple modulation feature, a phase-transition anisotropic magnetoresistance (PTAMR) device is fabricated. The special features which distinguish from traditional materials can further benefit the emerging device applications. Our work, as an example of phase-transition spintronics, can certainly pave the way for next-generation electronics.

1) Guodong Wei, Xiaoyang Lin et al. arXiv: 1805.02453.
2) Guodong Wei, Xiaoyang Lin et al. arXiv: 1809.06999.

*This work was supported by the NSFC (Nos. 51602013 and 11804016), the International Collaboration 111 Project (No. B16001) and the Beijing Advanced Innovation Center for Big Data and Brain Computing (BDBC).

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Presenters

  • Guodong Wei

    • Beihang University

Authors

  • Guodong Wei

    • Beihang University

  • Xiaoyang Lin

    • Beihang University

  • Zhizhong Si

    • Beihang University

  • Xinhe Wang

    • Beihang University

  • Kai Liu

    • Tsinghua University

  • Kaili Jiang

    • Tsinghua University

  • Yanxue Chen

    • Shandong University

  • Stephane Mangin

    • University of Lorraine
    • Institut Jean Lamour, UMR 7198,CNRS-Nancy Université

  • Weisheng Zhao

    • Beihang University
    • Fert Beijing Institute, BDBC, School of Electronic and Information Engineering, Beihang University, Xueyuan Road 37, Beijing 100191, China