$\delta$-doped SrTiO3 heterostructure in high magnetic fields

POSTER

Abstract

High mobility 0.1\% $\delta$-doped STO magneto-transport has been measured in high magnetic fields as a function of angle. The Nb:SrTiO3 doping layer is 25 nm thick and sandwiched between insulating SrTiO3 buffer and cap layers on an SrTiO3 substrate, putting it well within the 2-dimensional limit. The system exhibits Shubnikov-de Haas oscillations over the entire angle range measured. The resulting interplay between multiple sub-bands as the system approaches the quantum limit will be discussed.

Authors

  • Scott Riggs

    • Stanford University
    • Stanford University, Stanford, CA

  • Minu Kim

    • Stanford University

  • Chris Bell

    • Department of Applied Physics and Stanford Institute for Materials and Energy Science, Stanford University,Stanford, California 94305, USA
    • Stanford University, USA
    • Stanford Institute for Materials and Energy Sciences, Stanford University
    • Stanford Univeristy

  • Ian Fisher

    • Geballe Laboratory for Advanced Materials and Department of Applied Physics, Stanford University
    • Stanford University

  • Ross MacDonald

    • National High Magnetic Field Lab

  • Harold Hwang

    • Department of Applied Physics and Stanford Institute for Materials and Energy Science, Stanford University,Stanford, California 94305, USA
    • Stanford University, USA
    • Stanford Institute for Materials and Energy Sciences, Stanford University
    • Stanford University
    • Stanford University and SLAC National Accelerator Laboratory