Optical properties of monolayer MoSe2/layered antiferromagnet heterostructures

ORAL

Abstract

Van der Waals heterostructure has attracted much interest because of its high extensibility by using various layered materials. Furthermore, the recent discovery of 2D magnets has provided us a new platform to investigate magnetic van der Waals heterointerfaces, leading to novel studies on spin-/valley-tronics [1].
Here we report a new type of magnetic van der Waals heterointerface using monolayer transition metal dichalcogenides (especially MoSe2) and layered antiferromagnets. We fabricated the samples by using all-dry-transfer method in inert atmosphere and performed photoluminescence measurements at low temperature. The characteristic spectra are observed below the transition temperature of the magnets, which suggests that the magnetic ordering can affect the exciton property of MoSe2 directly.
[1] D. Zhong et al., Science Advances 3, e1603113 (2017).

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Presenters

  • Masaru Onga

    Department of applied physics, University of Tokyo, University of Tokyo

Authors

  • Masaru Onga

    Department of applied physics, University of Tokyo, University of Tokyo

  • Yusuke Sugita

    The University of Tokyo, University of Tokyo

  • Toshiya Ideue

    University of Tokyo, Department of applied physics, University of Tokyo, Department of Applied Physics, University of Tokyo

  • Yuji Nakagawa

    Department of Applied Physics, The University of Tokyo, Department of applied physics, University of Tokyo, University of Tokyo

  • Ryuji Suzuki

    University of Tokyo

  • Yukitoshi Motome

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

  • Yoshihiro Iwasa

    Department of Applied Physics, The University of Tokyo, University of Tokyo, Department of applied physics, University of Tokyo, Department of Applied Physics, University of Tokyo, Quantum-Phase Electronics Center and Department of Applied Physics, University of Tokyo