Tunneling current through a quantum dot array

David M.T. Kuo; G. Y. Guo; Yia Chung Chang

doi:10.1063/1.1420775

Tunneling current through a quantum dot array

David M.T. Kuo, G. Y. Guo, Yia Chung Chang

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

The tunneling current through a quantum dot array (QDA) is studied theoretically. Strong electron correlation effect is taken into account in the QDA in which the quantum dots provide a strong three-dimensional confinement effect. A mixed Hubbard and Anderson model is used to simulate the system. It is found that Coulomb charging splits the band resulting from interdot coupling into two subbands. The tunneling current is thus influenced significantly by both Coulomb charging and interdot coupling.

Original language	English
Pages (from-to)	3851-3853
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	23
DOIs	https://doi.org/10.1063/1.1420775
State	Published - 3 Dec 2001

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10.1063/1.1420775

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title = "Tunneling current through a quantum dot array",

abstract = "The tunneling current through a quantum dot array (QDA) is studied theoretically. Strong electron correlation effect is taken into account in the QDA in which the quantum dots provide a strong three-dimensional confinement effect. A mixed Hubbard and Anderson model is used to simulate the system. It is found that Coulomb charging splits the band resulting from interdot coupling into two subbands. The tunneling current is thus influenced significantly by both Coulomb charging and interdot coupling.",

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AU - Chang, Yia Chung

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N2 - The tunneling current through a quantum dot array (QDA) is studied theoretically. Strong electron correlation effect is taken into account in the QDA in which the quantum dots provide a strong three-dimensional confinement effect. A mixed Hubbard and Anderson model is used to simulate the system. It is found that Coulomb charging splits the band resulting from interdot coupling into two subbands. The tunneling current is thus influenced significantly by both Coulomb charging and interdot coupling.

AB - The tunneling current through a quantum dot array (QDA) is studied theoretically. Strong electron correlation effect is taken into account in the QDA in which the quantum dots provide a strong three-dimensional confinement effect. A mixed Hubbard and Anderson model is used to simulate the system. It is found that Coulomb charging splits the band resulting from interdot coupling into two subbands. The tunneling current is thus influenced significantly by both Coulomb charging and interdot coupling.

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M3 - 期刊論文

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JO - Applied Physics Letters

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Tunneling current through a quantum dot array

Abstract

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