Substrate effect on excitation dynamics of 2D materials

POSTER

Abstract

Excitation dynamics of 2D materials has been extensively studied by different theoretical and experimental methods. However, effect of substrate on the excitation dynamics of 2D materials has not been well delineated. We perform quantum molecular dynamics simulations at high electron temperatures within the density functional theory framework to understand the effect of substrate. The simulation results show that interaction between substrate and transition metal dichalcogenide layers create distinct anisotropy in electronic excitation-induced lattice dynamics that may be experimentally observable.

Presenters

  • Subodh Tiwari

    University of Southern California, Univ of Southern California

Authors

  • Subodh Tiwari

    University of Southern California, Univ of Southern California

  • Hiroyuki Kumazoe

    Physics, Kumamoto University, University of Southern California

  • Aravind Krishnamoorthy

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

  • Fuyuki Shimojo

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

  • 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

  • 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