Probing CDW states in Graphene/1T-TaS2 heterostructures using Scanning Tunneling Microscopy/Spectroscopy.

ORAL

Abstract

The transition-metal dichalcogenide 1T-Tantalum Disulfide (1T-TaS2) hosts various

Charge Density Wave (CDW) states which survive well above room temperature.

However, 1T-TaS2 is highly susceptible to degradation under ambient conditions,

making it difficult to probe experimentally with surface sensitive techniques. We use a

monolayer Graphene cover to protect its surface from oxidation and investigate these

heterostructures using Scanning Tunneling Microscopy/Spectroscopy. Our

measurements reveal an induced CDW-like phase in the Graphene layer.

*National Science Foundation grant EFRI 1433307; the Department of EnergyDOE-FG02-99ER45742, the Gordon and Betty Moore Foundation EPiQS initiativegrant GBMF9453

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Presenters

  • Taha Kaleem

    • Rutgers University

Authors

  • Taha Kaleem

    • Rutgers University

  • Michael Altvater

    • Rutgers University, New Brunswick

  • Sheng-Hsiung Hung

    • Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
    • National Tsing Hua University

  • Nikhil M Tilak

    • Rutgers University

  • Choong Jae-Won

    • Max Planck POSTECH/Korea Research Initiative, Pohang University of Science and Technology and Laboratory of Pohang Emergent Materials, Pohang Accelerator Laboratory, Korea

  • Guohong Li

    • Rutgers University, New Brunswick

  • Sang-Wook Cheong

    • Rutgers University
    • RCEM and Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
    • Rutgers University, New Brunswick

  • Chung-Hou Chung

    • Department of Electrophysic, National Yang Ming Chiao Tung University, Taiwan
    • Electrophysics Department, National Yang Ming Chiao Tung University, Hsinchu, Taiwan 300, R.O.C.
    • Department of Electrophysics, Natl Yang Ming Chiao Tung Univ., Taiwan
    • National Chiao Tung University

  • Horng-Tay Jeng

    • National Tsing Hua University
    • Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan

  • Eva Y Andrei

    • Rutgers University