Transport Properties Of Near Surface Quantum Wells In InAs Heterostructures

ORAL

Abstract

We study transport properties of 2 dimensional electron gases (2DEG) confined in a quantum well (QW) just below the surface. These quantum wells allow a wide variety of new applications including epitaxial contact to superconducting metals such as Al and Nb. In this work we study Dingle mobility and Landau level broadening of these samples and examine missing odd integer quantum Hall states at high magnetic field. We also analyze the weak antilocalization signal and extract information about spin orbit coupling which provide a foundation for future measurements involving topological superconductivity.

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Presenters

  • Joseph Yuan

    New York University, Physics, New York University

Authors

  • Joseph Yuan

    New York University, Physics, New York University

  • William Mayer

    Physics, New York University, Center for Quantum Phenomena, New York University, New York University

  • KAUSHINI WICKRAMASINGHE

    Univ of Oklahoma, Physics, New York University, Physics, Univ of Maryland-College Park, Univ of Maryland-College Park

  • Javad Shabani

    New York University, Physics, New York University, Center for Quantum Phenomena, New York University