Influence of interdot coupling on electron-wave interference in an open quantum-dot molecule

N. Aoki; D. Oonishi; Y. Iwase; Y. Ochiai; K. Ishibashi; Y. Aoyagi; J. P. Bird

doi:10.1063/1.1472471

Influence of interdot coupling on electron-wave interference in an open quantum-dot molecule

N. Aoki
, D. Oonishi
, Y. Iwase
, Y. Ochiai
, K. Ishibashi
, Y. Aoyagi
, J. P. Bird

Department of Electrical Engineering

Chiba University
RIKEN

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

17 Scopus citations

Abstract

We study the characteristics of the fluctuations, observed in the low-temperature magnetoconductance of an open quantum-dot molecule formed from a pair of split-gate quantum dots. The evolution of these fluctuations suggests a decrease in the typical area for coherent interference with decreasing dot-coupling strength. We discuss this behavior in terms of a transition from multi- to single-dot interference as a function of the interdot coupling.

Original language	English
Pages (from-to)	2970-2972
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	16
DOIs	https://doi.org/10.1063/1.1472471
State	Published - Apr 22 2002

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10.1063/1.1472471

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abstract = "We study the characteristics of the fluctuations, observed in the low-temperature magnetoconductance of an open quantum-dot molecule formed from a pair of split-gate quantum dots. The evolution of these fluctuations suggests a decrease in the typical area for coherent interference with decreasing dot-coupling strength. We discuss this behavior in terms of a transition from multi- to single-dot interference as a function of the interdot coupling.",

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AU - Iwase, Y.

AU - Ochiai, Y.

AU - Ishibashi, K.

AU - Aoyagi, Y.

AU - Bird, J. P.

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N2 - We study the characteristics of the fluctuations, observed in the low-temperature magnetoconductance of an open quantum-dot molecule formed from a pair of split-gate quantum dots. The evolution of these fluctuations suggests a decrease in the typical area for coherent interference with decreasing dot-coupling strength. We discuss this behavior in terms of a transition from multi- to single-dot interference as a function of the interdot coupling.

AB - We study the characteristics of the fluctuations, observed in the low-temperature magnetoconductance of an open quantum-dot molecule formed from a pair of split-gate quantum dots. The evolution of these fluctuations suggests a decrease in the typical area for coherent interference with decreasing dot-coupling strength. We discuss this behavior in terms of a transition from multi- to single-dot interference as a function of the interdot coupling.

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EP - 2972

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ER -

Influence of interdot coupling on electron-wave interference in an open quantum-dot molecule

Abstract

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