Synthesis and characterization of transition metal chalcogenide superlattice compounds

ORAL

Abstract

The transition metal dichalcogenides MX2 have recently attracted significant attention for their novel electronic properties in monolayer form. These include optical control of valley polarization, the valley Hall effect, and novel forms of superconductivity. While bulk crystals of MX2 materials have a quasi-two-dimensional character reflected in their electronic structure, the coupling between the layers dilutes the many exotic effects appearing in monolayer systems. Here, we report the synthesis of bulk single crystal superlattice materials that physically separate the MX2 layers in the 2H-MX2 structure resulting in enhancements of the 2D nature of their electronic properties observable in their transport behavior.

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Presenters

  • Aravind Devarakonda

    • MIT
    • Department of Physics, Massachusetts Institute of Technology

Authors

  • Aravind Devarakonda

    • MIT
    • Department of Physics, Massachusetts Institute of Technology

  • Cigdem Ozsoy-Keskinbora

    • School of Engineering and Applied Sciences, Harvard University
    • Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University

  • Takehito Suzuki

    • MIT
    • Massachusetts Institute of Technology
    • Physics, Massachusetts Institute of Technology
    • Department of Physics, Massachusetts Institute of Technology

  • Manabu Kamitani

    • The University of Tokyo
    • RIKEN Center for Emergent Matter Science (CEMS)

  • Markus Kriener

    • RIKEN Center for Emergent Matter Science (CEMS)
    • RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan.

  • Yoshinori Tokura

    • RIKEN Center for Emergent Matter Science (CEMS)
    • RIKEN Center for Emergent Matter Science
    • RIKEN CEMS
    • RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan
    • Center for Emergent Matter Science (CEMS), RIKEN
    • Department of Applied Physics and Quantum-Phase Electronics Center, University of Tokyo
    • University of Tokyo
    • University of Tokyo and RIKEN CEMS
    • CEMS, RIKEN
    • Center for Emergent Matter Science, RIKEN
    • Department of Applied Physics, University of Tokyo
    • University of Tokyo and RIKEN-CEMS

  • David Bell

    • Harvard University
    • School of Engineering and Applied Sciences, Harvard University
    • Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University

  • Joseph Checkelsky

    • MIT
    • Massachusetts Institute of Technology
    • Physics, Massachusetts Institute of Technology
    • Department of Physics, Massachusetts Institute of Technology