Delocalization in a double quantum dot system

M. Brodsky; N. B. Zhitenev; R. C. Ashoori; L. N. Pfeiffer; K. W. West

doi:10.1016/S1386-9477(99)00151-4

Delocalization in a double quantum dot system

M. Brodsky, N. B. Zhitenev, R. C. Ashoori, L. N. Pfeiffer, K. W. West

Research output: Contribution to journal › Conference article › peer-review

Abstract

We study the delocalization process in a double dot system by merging two quantum dots of different densities. The addition of each electron to the system is detected by a capacitive technique, allowing us to monitor the evolution of the addition spectrum over a very broad range of electron densities. The data indicate that delocalization can occur in different fashions depending on the merging density. While the magnetic field has no effect on the merging of two high-density dots (n≥2×10¹¹ cm^-2), it dramatically affects the merging of two dots of lower density (n to approximately 1-2×10¹¹ cm^-2).

Original language	English (US)
Pages (from-to)	680-683
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	6
Issue number	1
DOIs	https://doi.org/10.1016/S1386-9477(99)00151-4
State	Published - Feb 2000
Externally published	Yes
Event	13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can Duration: Aug 1 1999 → Aug 6 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/S1386-9477(99)00151-4

Cite this

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title = "Delocalization in a double quantum dot system",

abstract = "We study the delocalization process in a double dot system by merging two quantum dots of different densities. The addition of each electron to the system is detected by a capacitive technique, allowing us to monitor the evolution of the addition spectrum over a very broad range of electron densities. The data indicate that delocalization can occur in different fashions depending on the merging density. While the magnetic field has no effect on the merging of two high-density dots (n≥2×1011 cm-2), it dramatically affects the merging of two dots of lower density (n to approximately 1-2×1011 cm-2).",

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T1 - Delocalization in a double quantum dot system

AU - Brodsky, M.

AU - Zhitenev, N. B.

AU - Ashoori, R. C.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2000/2

Y1 - 2000/2

N2 - We study the delocalization process in a double dot system by merging two quantum dots of different densities. The addition of each electron to the system is detected by a capacitive technique, allowing us to monitor the evolution of the addition spectrum over a very broad range of electron densities. The data indicate that delocalization can occur in different fashions depending on the merging density. While the magnetic field has no effect on the merging of two high-density dots (n≥2×1011 cm-2), it dramatically affects the merging of two dots of lower density (n to approximately 1-2×1011 cm-2).

AB - We study the delocalization process in a double dot system by merging two quantum dots of different densities. The addition of each electron to the system is detected by a capacitive technique, allowing us to monitor the evolution of the addition spectrum over a very broad range of electron densities. The data indicate that delocalization can occur in different fashions depending on the merging density. While the magnetic field has no effect on the merging of two high-density dots (n≥2×1011 cm-2), it dramatically affects the merging of two dots of lower density (n to approximately 1-2×1011 cm-2).

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DO - 10.1016/S1386-9477(99)00151-4

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VL - 6

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EP - 683

JO - Physica E: Low-Dimensional Systems and Nanostructures

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Y2 - 1 August 1999 through 6 August 1999

ER -

Delocalization in a double quantum dot system

Abstract

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