Electrical Detection of Nuclear Magnetic Resonance Signal of Nuclear Spins of Order 10⁴ in a Semiconductor Double Quantum Dot Electrical Detection of Nuclear Magnetic Resonance Signal of Nuclear Spins of Order 10^{4} in a Semiconductor Double Quantum Dot

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We report the electrical detection of a nuclear magnetic resonance signal of indium spins in a vertical GaAs/In0.04Ga0.96As double quantum dot. In this system, dynamic nuclear polarization appears to be accompanied by a relief of the Pauli spin-blockade state, and can be detected as a change in the current if a radio-frequency magnetic field is applied. We observed a change in the current under a dc magnetic field, and detected an NMR signal with {\sim}2\times 10^{4} indium spins as this change in the resonant frequency. A difference in polarization between two dots can be obtained with the depolarization of indium.

収録刊行物

  • Applied physics express

    Applied physics express 5(2), 025002-025002-3, 2012-02-25

    The Japan Society of Applied Physics

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各種コード

  • NII論文ID(NAID)
    10030155742
  • NII書誌ID(NCID)
    AA12295133
  • 本文言語コード
    EN
  • 資料種別
    SHO
  • ISSN
    18820778
  • NDL 記事登録ID
    023454456
  • NDL 請求記号
    Z78-A526
  • データ提供元
    CJP書誌  NDL  JSAP 
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