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期刊论文

Electron g-factor distribution in self-assembled quantum dots

盛卫东Weidong Sheng

PHYSICAL REVIEW B 77, 241307 R 2008 ,-0001,():

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摘要/描述

Based on a tight-binding study of the electronic spin structure in self-assembled InGaAs/GaAs quantum dots, we propose a theory to explain why the electron g factor in these artificial atoms is insensitive to the variation of the structural dimensions and chemical composition profile and also present a microscopic picture to understand the isotropic behavior of the lateral electron g factor. The former provides an important justification for the recent experimental measurement of electron g factors in an ensemble of quantum dots, while the latter overrides the common knowledge that the shape anisotropy of quantum dots has an important effect on the in-plane electron g-factor anisotropy.

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版权说明:以下全部内容由盛卫东上传于   2010年01月30日 18时16分14秒,版权归本人所有。

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