Development of a Topological-Insulator-Based Quantum Resistance Standard

ORAL

Abstract

Recent precision measurements of the quantum anomalous Hall effect (QAHE) point to a future in which the QAHE can become the basis for resistance standards. At the same time, such efforts suggest the possibility of integrating previously incompatible quantum standards into a single system to realize multiple electrical units. This work focuses on the characterization of the accuracy of the QAHE in Chromium-doped Bismuth Antimony Telluride. Supplementary work also focuses on the efforts in directly coupling a quantum anomalous Hall resistor to a programmable Josephson voltage standard, which make possible the creation of a quantum current sensor. Beyond providing a realization of the ampere based on the new SI, this work is among the first attempts to co-locate multiple quantum standards into a single cryostat.

* Air Force Office of Scientific Research (AFOSR) Multidisciplinary Research Program of the University Research Initiative (MURI) under grant number FA9550-21-1-0429.U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division,under Contract No. DE-AC02- 76SF00515.Gordon and Betty Moore Foundation through Grant No. GBMF9460.National Science Foundation (NSF) (DMR-1411085 and DMR-1810163).Army Research Office MURI under grant numbers W911NF16-1-0472 and W911NF-19-S-0008

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Publication: https://doi.org/10.48550/arXiv.2308.00200

Presenters

  • Ngoc Thanh Mai Tran

    University of Maryland, College Park

Authors

  • Ngoc Thanh Mai Tran

    University of Maryland, College Park

  • Linsey K Rodenbach

    Stanford Univ, Stanford University, Department of Physics, Stanford University, Stanford, California

  • Jason M Underwood

    National Institute of Standards and Technology

  • Alireza R Panna

    NIST, National Institute of Standards and Technology

  • Zac S Barcikowski

    University of Maryland, College Park, National Institute of Standards and Technology

  • Molly P Andersen

    Stanford University, Department of Physics, Stanford University, Stanford, California

  • Shamith Payagala

    NIST, National Institute of Standard and Technology

  • Peng Zhang

    University of California, Los Angeles

  • Lixuan Tai

    University of California, Los Angeles, Department of Electrical and Computer Engineering, University of California, Los Angeles

  • Kang-Lung Wang

    University of California, Los Angeles, UCLA

  • Randolph E Elmquist

    National Institute of Standards and Technology

  • Dean G Jarrett

    NIST, National Institute of Standards and Technology

  • David B Newell

    National Institute of Standards and Technology

  • David Goldhaber-Gordon

    Stanford University, Stanford Institute for Materials and Energy Sciences, Stanford University Physics Department, Department of Physics, Stanford University, Stanford, California, Stanford Institute for Materials & Energy Sciences, Stanford University