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arXiv 0802.2436cond-mat.mtrl-sci
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纤锌矿结构氮化物量子点电子和光学性质中的自旋轨道耦合和晶场分裂

Spin-orbit coupling and crystal-field splitting in the electronic and optical properties of nitride quantum dots with a wurtzite crystal structure

S. Schulz, S. Schumacher, G. Czycholl

摘要:

本文提出了一个计算纤锌矿半导体量子点电子和光学性质的$sp^3$紧束缚模型。紧束缚模型考虑了应变、压电性、自旋轨道耦合和晶场分裂。激子吸收光谱的计算使用组态相互作用计划。我们研究了InN/GAN量子点的电子和光学性质及其对结构特性、晶场分裂和自旋轨道耦合的依赖性。

英文摘要:

We present an $sp^3$ tight-binding model for the calculation of the electronic and optical properties of wurtzite semiconductor quantum dots (QDs). The tight-binding model takes into account strain, piezoelectricity, spin-orbit coupling and crystal-field splitting. Excitonic absorption spectra are calculated using the configuration interaction scheme. We study the electronic and optical properties of InN/GaN QDs and their dependence on structural properties, crystal-field splitting, and spin-orbit coupling.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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