Structural phase transition and magnetic behavior in two-dimensional rhenium-doped molybdenum diselenide

ORAL

Abstract

Typical Group VIB transition metal dichalcogenides are layered van der Waals compounds with a semiconducting behavior due to 2H symmetry. The 1T/1T' symmetry imparts semimetallic behavior but isn't as energetically stable; these phases are typically obtained via lithium intercalation. Here, we demonstrate the 2H-1T' stable phase transition via controllable incorporation of rhenium in 2D MoSe2 using chemical vapor deposition. The phase transition is revealed via HAADF-STEM imaging and complimented by DFT simulations. In addition, we also show the emergence of magnetic ordering in such 2D alloys which pave the way for tuning these phase fractions for applications in electronics and/or spintronics.

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Presenters

  • Amey Anant Apte

    Materials Science & NanoEngineering, Rice University

Authors

  • Amey Anant Apte

    Materials Science & NanoEngineering, Rice University

  • Vidya Kochat

    Materials Science & NanoEngineering, Rice University, MSNE, Rice Univ

  • Jordan Hachtel

    Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Center for Nanophase Materials

  • Hiroyuki Kumazoe

    Physics, Kumamoto University

  • Aravind Krishnamoorthy

    Physics & Astronomy, University of Southern California, Univ of Southern California, Physics, University of Southern California, University of Southern California

  • Sandhya Susarla

    Materials Science & NanoEngineering, Rice University, MSNE, Rice Univ

  • Juan Carlos Idrobo

    Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Center for Nanophase Materials

  • Fuyuki Shimojo

    Physics, Kumamoto University, Kumamoto University, Department of Physics, Kumamoto University

  • Priya Vashishta

    Univ of Southern California, Physics & Astronomy, University of Southern California, University of Southern California, Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California, Collaboratory of Advanced Computing and Simulations, Univ of Southern California, Collaboratory for Advanced Computing and Simulations, University of Southern California, Physics, University of Southern California

  • Rajiv Kalia

    Univ of Southern California, Physics & Astronomy, University of Southern California, University of Southern California, Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California, Collaboratory of Advanced Computing and Simulations, Univ of Southern California, Collaboratory for Advanced Computing and Simulations, University of Southern California, Physics, University of Southern California

  • Aiichiro Nakano

    Univ of Southern California, Physics & Astronomy, University of Southern California, University of Southern California, Mork Family Department of Chemical Engineering and Materials Science, Univ of Southern California, Collaboratory of Advanced Computing and Simulations, Univ of Southern California, Physics, University of Southern California

  • Chandra Sekhar Tiwary

    Materials Science & NanoEngineering, Rice University, MSNE, Rice Univ

  • Pulickel Ajayan

    Materials Science & NanoEngineering, Rice University, MSNE, Rice Univ, Department of Materials Science and Nano Engineering, Rice University, Department of Materials Science and Nanoengineering, Rice university, Rice University