標題: | Analytical calculation of eigen-energies for lens-shaped quantum dot with finite barriers |
作者: | Rodriguez, A. H. Ramirez, H. Y. 電子物理學系 Department of Electrophysics |
公開日期: | 1-十一月-2008 |
摘要: | The bound states of a particle in a lens-shaped quantum dot with finite confinement potential are obtained in the envelope function approximation. The quantum dot has circular base with radius a and maximum cap height b, and the effective mass of the particle is considered different inside and outside the dot. A 2D Fourier expansion is used in a semi-sphere domain with infinite walls which contains the geometry of the original potential. Electron energies for different values of lens deformation b/a, lens radius a and barrier height V(o) are calculated. In the very high confinement potential limit, the results for the infinite barrier case are recovered. |
URI: | http://dx.doi.org/10.1140/epjb/e2008-00394-3 http://hdl.handle.net/11536/8164 |
ISSN: | 1434-6028 |
DOI: | 10.1140/epjb/e2008-00394-3 |
期刊: | EUROPEAN PHYSICAL JOURNAL B |
Volume: | 66 |
Issue: | 2 |
起始頁: | 235 |
結束頁: | 238 |
顯示於類別: | 期刊論文 |