Optically-detected NMR of optically-hyperpolarized 31P neutral donors in 28Si

DOI DOI PDF 被引用文献5件 オープンアクセス
  • M. Steger
    Simon Fraser University 1 Department of Physics, , Burnaby, British Columbia V5A 1S6, Canada
  • T. Sekiguchi
    Simon Fraser University 1 Department of Physics, , Burnaby, British Columbia V5A 1S6, Canada
  • A. Yang
    Simon Fraser University 1 Department of Physics, , Burnaby, British Columbia V5A 1S6, Canada
  • K. Saeedi
    Simon Fraser University 1 Department of Physics, , Burnaby, British Columbia V5A 1S6, Canada
  • M. E. Hayden
    Simon Fraser University 1 Department of Physics, , Burnaby, British Columbia V5A 1S6, Canada
  • M. L. W. Thewalt
    Simon Fraser University 1 Department of Physics, , Burnaby, British Columbia V5A 1S6, Canada
  • K. M. Itoh
    Keio University 2 School of Fundamental Science and Technology, , Yokohama 223-8522, Japan
  • H. Riemann
    Leibniz-Institut für Kristallzüchtung 3 , D-12489 Berlin, Germany
  • N. V. Abrosimov
    Leibniz-Institut für Kristallzüchtung 3 , D-12489 Berlin, Germany
  • P. Becker
    PTB Braunschweig 4 , D-38116 Braunschweig, Germany
  • H.-J. Pohl
    VITCON Projectconsult GmbH 5 , D-07743 Jena, Germany

書誌事項

公開日
2011-05-15
DOI
  • 10.1063/1.3577614
  • 10.48550/arxiv.1009.6003
公開者
AIP Publishing

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<jats:p>The electron and nuclear spins of the shallow donor 31P are promising qubit candidates invoked in many proposed Si-based quantum computing schemes. We have recently shown that the near-elimination of inhomogeneous broadening in highly isotopically enriched 28Si enables an optical readout of both the donor electron and nuclear spins by resolving the donor hyperfine splitting in the near-gap donor bound exciton transitions. We have also shown that pumping these same transitions can very quickly produce large electron and nuclear hyperpolarizations at low magnetic fields, where the equilibrium electron and nuclear polarizations are very small. Here we show preliminary results of the measurement of 31P neutral donor NMR parameters using this optical nuclear hyperpolarization mechanism for preparation of the 31P nuclear spin system, followed by optical readout of the resulting nuclear spin population after manipulation with NMR pulse sequences. This allows for the observation of single-shot NMR signals with very high signal-to-noise ratio under conditions where conventional NMR is not possible, due to the low concentration of 31P and the small equilibrium polarization.</jats:p>

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