| DOI | Resolve DOI: https://doi.org/10.1063/1.4919101 |
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| Author | Search for: Amaha, S.; Search for: Hatano, T.; Search for: Tarucha, S.; Search for: Gupta, J. A.1; Search for: Austing, D. G.2 |
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| Affiliation | - National Research Council of Canada. Information and Communication Technologies
- National Research Council of Canada
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| Format | Text, Article |
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| Subject | Hysteresis; Magnetic leakage; Nanocrystals; Pumps; Quantum theory; Spin dynamics; Current hysteresis; Double quantum dots; Double-quantum dot device; Hyperfine interactions; Nuclear spins; Spin state; Semiconductor quantum dots |
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| Abstract | We investigate nuclear spin pumping with five-electron quadruplet spin states in a spin-blockaded weakly coupled vertical double quantum dot device. Two types of hysteretic steps in the leakage current are observed on sweeping the magnetic field and are associated with bidirectional polarization of nuclear spin. Properties of the steps are understood in terms of bias-voltage-dependent conditions for the mixing of quadruplet and doublet spin states by the hyperfine interaction. The hysteretic steps vanish when up- and down-nuclear spin pumping processes are in close competition. |
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| Publication date | 2015-04-27 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275747 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | deb4cd6d-a932-436e-b950-8709ae84c0ab |
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| Record created | 2015-07-14 |
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| Record modified | 2020-04-22 |
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