Dependence of energy gap on magnetic field in semiconductor nano-scale quantum rings

Yi-Ming Li*, Hsiao Mei Lu, O. Voskoboynikov, C. P. Lee, S. M. Sze

*此作品的通信作者

研究成果: Conference article同行評審

38 引文 斯高帕斯(Scopus)

摘要

We study the electron and hole energy states for a complete three-dimensional (3D) model of semiconductor nano-scale quantum rings in an external magnetic field. In this study, the model formulation includes: (i) the position dependent effective mass Hamiltonian in non-parabolic approximation for electrons, (ii) the position dependent effective mass Hamiltonian in parabolic approximation for holes, (iii) the finite hard wall confinement potential, and (iv) the Ben Daniel-Duke boundary conditions. To solve this 3D non-linear problem, we apply the non-linear iterative method to obtain self-consistent solutions. We find a non-periodical oscillation of the energy band gap between the lowest electron and hole states as a function of external magnetic fields. The result is useful in describing magneto-optical properties of the nano-scale quantum rings.

原文English
頁(從 - 到)811-815
頁數5
期刊Surface Science
532-535
DOIs
出版狀態Published - 10 6月 2003
事件Proceedings of the 7th International Conference on Nanometer - Malmo, Sweden
持續時間: 29 8月 200231 8月 2002

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