Modulation of magnetism across the van der Waals interfaces

ORAL

Abstract

A van der Waals (vdW) heterostructure provides an indispensable material platform in modern condensed-matter researches. There, weak interlayer bonding nature ensures formation of an atomically-abrupt heterointerface beyond fundamental constraint imposed by lattice matching condition, while strong electronic coupling enables creation of an emergent electronic ground state that is missing in individual materials. Here we fabricated vdW heterostructures by molecular-beam epitaxy, where a new type of 2D magnet, vanadium selenide epitaxial thin film1, was incorporated. In the presentation, we will show transport properties of those magnetic heterostructures, and discuss the interface proximity effect on 2D magnetism. [1] M. Nakano et al, Intrinsic 2D ferromagnetism in V5Se8 epitaxial thin films. arXiv:1910.01959.

*This work was supported by Grants-in-Aid for Scientific Research (Grant Nos. 19H05602, 19H02593, and 19H00653) and A3 Foresight Program from the Japan Society for the Promotion of Science.

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Presenters

  • Masaki Nakano

    • Univ of Tokyo
    • Department of Applied Physics, The University of Tokyo

Authors

  • Hideki Matsuoka

    • Univ of Tokyo
    • Department of Applied Physics, The University of Tokyo

  • Mohammad Saeed Bahramy

    • Univ of Tokyo
    • Department of Applied Physics, University of Tokyo

  • Yue Wang

    • Univ of Tokyo
    • Department of Applied Physics, The University of Tokyo

  • Satoshi Yoshida

    • Univ of Tokyo

  • Kyoko Ishizaka

    • Univ of Tokyo
    • Department of Applied Physics, University of Tokyo

  • Yoshihiro Iwasa

    • Department of Applied Physics, The University of Tokyo
    • Univ of Tokyo
    • Department of Applied Physics and Quantum-Phase Electronics (QPEC) Center, The University of Tokyo
    • The Univ. of Tokyo, Tokyo, Japan.
    • The University of Tokyo
    • Applied Physics, the University of Tokyo

  • Masaki Nakano

    • Univ of Tokyo
    • Department of Applied Physics, The University of Tokyo