Four Electrons in a Coupled Three-Layer Quantum Dot

Chin. Phys. Lett.

2007, Vol. 24

Issue (1): 176-179 DOI:

Original Articles

Four Electrons in a Coupled Three-Layer Quantum Dot

XIE Wen-Fang

Department of Physics, Guangzhou University, Guangzhou 510006

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XIE Wen-Fang 2007 Chin. Phys. Lett. 24 176-179

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Abstract We investigate four electrons confined in a coupled three-layer quantum dot, by the exact diagonalization method. A vertical magnetic field to the confinement plane is considered. The ground-state electronic structures and angular momentum transitions are investigated. We find that for four-electron QDs, the series of the magic numbers in three-layer QDs are different from those in one-, and two-layer QDs. These are connected to the exchange and rotational symmetries of the systems.

Keywords: 68.65.-k

Published: 01 January 2007

PACS:

68.65.-k

(Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2007/V24/I1/0176

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