Magnetic field dependence of Pauli spin blockade: A window into the sources of spin relaxation in silicon quantum dots

G. Yamahata, T. Kodera, H. O.H. Churchill, K. Uchida, C. M. Marcus, S. Oda

    Research output: Contribution to journalArticle

    41 Citations (Scopus)

    Abstract

    We investigate spin relaxation in a silicon double quantum dot via leakage current through Pauli blockade as a function of interdot detuning and magnetic field. A dip in leakage current as a function of magnetic field on an ∼40 mT field scale is attributed to spin-orbit mediated spin relaxation. On a larger (∼400 mT) field scale, a peak in leakage current is seen in some, but not all, Pauli-blocked transitions, and is attributed to spin-flip cotunneling. Both dip and peak structure show good agreement between theory and experiment.

    Original languageEnglish
    Article number115322
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume86
    Issue number11
    DOIs
    Publication statusPublished - 2012 Sep 13

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Magnetic field dependence of Pauli spin blockade: A window into the sources of spin relaxation in silicon quantum dots'. Together they form a unique fingerprint.

  • Cite this