| DOI | Resolve DOI: https://doi.org/10.1143/JJAP.51.02BJ06 |
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| Author | Search for: Amaha, Shinichi; Search for: Hatano, Tsuyoshi; Search for: Izumida, Wataru; Search for: Teraoka, Soichiro; Search for: Ono, Keiji; Search for: Kono, Kimitoshi; Search for: Tarucha, Seigo; Search for: Aers, Geof1; Search for: Gupta, James1; Search for: Austing, Guy1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Subject | Coulomb diamonds; Design Principles; Device processing; Double-quantum dot device; Interaction model; Random impurities; Region shape; Sequential tunneling; Single gates; Submicron; Triple quantum; Well structure; Well thickness; Coulomb blockade; Electronic properties; Semiconductor device structures; Semiconductor quantum dots |
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| Abstract | We present the electronic properties of a triple quantum dot molecule embedded inside a sub-micron mesa, made from a quadruple-barrier triplequantum- well structure, and surrounded by a single gate electrode. We outline the design principles of the quadruple-barrier triple-quantum-well structure and calculate the energy of the three lowest states as a function of center well thickness. We observe regular and irregular shaped Coulomb diamond regions similar to those for double quantum dot devices. Variation in the Coulomb blockade region shape is introduced by fluctuation in the offset energies between the quantum dots likely associated with device processing and random impurity potential in the material. We also present Coulomb blockade patterns calculated with a constant interaction model for sequential tunneling through the three series-coupled quantum dots. © 2012 The Japan Society of Applied Physics. |
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| Publication date | 2012-02-20 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270101 |
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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 | 2356459a-c035-423d-a4dd-7433e49f2f22 |
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| Record created | 2013-12-23 |
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| Record modified | 2020-04-21 |
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