Exotic electronic structure of monolayer 1T phase NbSe2

ORAL

Abstract

Group V 1T phase transition metal dichalcogenides (TMDs) have received significant interest due to the strong electron correlation. Naturally occurring bulk NbSe2 is a 2H phase, however, recently it is shown that a monolayer 1T polytype can be grown by MBE. In this work, we report a structural phase control of monolayer NbSe2 grown by MBE. Our scanning tunneling microscopy and spectroscopy reveal the exotic electronic structure on monolayer 1T-NbSe2, which is further supported by our density functional theory calculation results.

*This work was supported by National Science Foundation (NSF) No. DMR-1808751, NSF MRSEC No. DMR-1720595, Welch Foundation No. F-1672, and US Airforce No. FA2386-18-1-4097.

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Presenters

  • Mengke Liu

    • Physics, University of Texas at Austin
    • University of Texas at Austin

Authors

  • Mengke Liu

    • Physics, University of Texas at Austin
    • University of Texas at Austin

  • Jia Yu

    • University of Texas at Austin

  • Joshua A Leveillee

    • University of Texas at Austin

  • Hyunsue Kim

    • University of Texas at Austin

  • Keji Lai

    • University of Texas at Austin
    • Department of Physics, University of Texas at Austin

  • Feliciano Giustino

    • Physics, University of Texas at Austin
    • University of Texas at Austin
    • Oden Institute for Computational Engineering and Sciences, University of Texas at Austin
    • Department of Physic, The University of Texas at Austin, Austin, Texas 78712, USA, Oden Institute for Computational Engineering and Sciences
    • Oden Institute, University of Texas at Austin
    • Department of Materials, University of Oxford
    • Department of Physics, University of Texas at Austin
    • ODEN Institute for Computational Engineering and Sciences, University of Texas at Austin

  • Chih-Kang Shih

    • Physics, University of Texas at Austin
    • University of Texas at Austin
    • Department of Physics, The University of Texas at Austin