| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevLett.110.016803 |
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| Author | Search for: Amaha, S.; Search for: Izumida, W.; Search for: Hatano, T.; Search for: Teraoka, S.; Search for: Tarucha, S.; Search for: Gupta, J.A.1; Search for: Austing, D.G.1 |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Subject | sequential tunneling; spin blockade; triple quantum; triplet state; electrons; magnetic moments; semiconductor quantum dots; spin dynamics; electrospinning |
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| Abstract | We investigate two- and three-electron spin blockade in three vertical quantum dots (QDs) coupled in series. Two-electron spin blockade is found in a region where sequential tunneling through all QDs is forbidden but tunneling involving virtual hopping through an empty QD is allowed. It is observed only for the hole cycle with a distinct bias threshold for access to the triplet state. Three-electron spin blockade involving the quadruplet state is observed for nonequibilium conditions where sequential tunneling is allowed and the triplet state is accessible. Our results shine light on the importance of the nonequibilium conditions to obtain sufficient population of triplet and quadruplet states necessary for spin blockade. © 2013 American Physical Society. |
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| Publication date | 2013 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270548 |
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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 | 9d7c77a0-7b14-4030-87e2-ff569375bcbd |
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| Record created | 2014-02-17 |
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| Record modified | 2020-04-22 |
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