Shot Noise of a Quantum Point Contact

ORAL

Abstract

We report detailed simultaneous measurements of shot noise and DC transport in a quantum point contact (QPC) as a function of source-drain bias, gate voltage and in-plane magnetic field. The magnetic field evolution of the 0.7 feature in both conductance and noise is clearly visible and is compared to a simple model, giving good quantitative agreement.

*We acknowledge NSF-NSEC and ARO/ARDA for partial support

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Authors

  • Yiming Zhang

    • Harvard University

  • Leonardo DiCarlo

    • Harvard University

  • Douglas McClure

    • Harvard University

  • David Reilly

    • Harvard University

  • Charles Marcus

    • Harvard University

  • Loren Pfeiffer

    • Bell Laboratories

  • Ken West

    • Bell Laboratories