Engineering topological superlattices : Phase diagrams and electronic properties

ORAL

Abstract


So far, the majority of topological materials being investigated have been bulk crystals or thin films. A much less-explored area is combining diferent topological materials with trivial insulators and creating a new topological phases with distinct electronic properties, in the form of topological superlattices. We have studied a topological superlattice composed of topological insulator Bi2Se3, and normal insulator In2Se3 of different thickness. In this talk, we will discuss the low-temperature magnetotransport measurements and field theoretical calculations which show how the electronic properties of topological superlattices evolve with unit-layer thicknesses. We will further discuss if it is plausible to implement other more complex topological phases such as artificial 3D Dirac and Weyl semimetals from TI superlattices

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Presenters

  • Deepti Jain

    Rutgers, the State University of New Jersey, Physics, Rutgers University, Rutgers University, New Brunswick, Rutgers University

Authors

  • Deepti Jain

    Rutgers, the State University of New Jersey, Physics, Rutgers University, Rutgers University, New Brunswick, Rutgers University

  • Pavel P Shibayev

    Physics, Rutgers University, Rutgers University, Rutgers University, New Brunswick

  • Elio Koenig

    Rutgers University, New Brunswick, Department of Physics, Rutgers University

  • Maryam Salehi

    Rutgers, the State University of New Jersey, Materials Science and Engineering, Rutgers, The State University of New Jersey, Materials Sci. & Eng., Rutgers University, Rutgers University, New Brunswick, Rutgers University, Rutgers University - New Brunswick

  • Jisoo Moon

    Rutgers, the State University of New Jersey, Department of Physics and Astronomy, Rutgers, the State University of New Jersey, Physics and Astronomy, Rutgers, The State University of New Jersey, Rutgers University, Rutgers University, New Brunswick