[14p-A404-10~19] 17.3 Layered materials

[14p-A404-10] [Young Scientist Presentation Award Speech] Magnetism of van der Waals heterointerfaces with Zeeman-type spin-orbit-interaction

〇Hideki Matsuoka¹, Stewart Barnes², Jun'ichi Ieda³, Sadamichi Maekawa^4,5, Mohammad Bahramy^1,4, Yue Wang¹, Satoshi Yoshida¹, Kyoko Ishizaka^1,4, Yoshihiro Iwasa^1,4, Masaki Nakano^1,4 (1.Dept. of Appl. Phys., Univ. of Tokyo, 2.Univ. of Miami, 3.ASRC, JAEA, 4.RIKEN CEMS, 5.KITS, Univ. of Chinese Academy of Sciences)

Keywords:magnetism, transition metal dichalcogenide, molecular beam epitaxy

Emerging properties of van der Waals (vdW) materials at two-dimensional (2D) limit have been broadening their varieties, ranging from spin-orbit coupled transport properties, valley-polarized luminescence, spin-valley-locked superconductivities, to topological quantum transport. As one of big advantages of 2D materials, 2D physical phenomena could be more and more enriched by integrating different 2D materials into a heterostructure, so-called vdW heterostructures, providing a new high-quality platform for 2D physics. Here we created new magnetic vdW heterostructures with NbSe2 and 2D ferromagnet, vanadium selenide epitaxial thin film. As a result, Zeeman-type spin orbit coupling, which is unique to the some vdW materials such as NbSe2, was found to modulate the magnetic anisotropy dramatically. In this presentation, we report the recent progress on heterostructures using ultrathin films consisting of several atomic layers.