BINDING ENERGIES OF HYDROGENIC IMPURITIES ON-CENTER AND OFF-CENTER IN CYLINDRICAL QUANTUM DOTS UNDER ELECTRIC AND MAGNETIC FIELDS
文献类型：期刊论文
| 作者 | S. Wang ; G. Z. Wei ; G. Y. Yi |
| 刊名 | International Journal of Modern Physics B
 |
| 出版日期 | 2010 |
| 卷号 | 24期号:22页码:4293-4304 |
| 关键词 | Hydrogenic impurity cylindrical quantum dot magnetic field electric field binding energy donor impurity well wires states |
| ISSN号 | 0217-9792 |
| 中文摘要 | The ground-state binding energies of a hydrogenic impurity in cylindrical quantum dots (QDs) subjected to external electric and magnetic fields are investigated using the finite-difference method within the quasi-one-dimensional effective potential model. The QD is modeled by superposing a square-well potential and a strong lateral confinement potential by the combination of a parabolic potential and a changeable magnetic field. We define an effective radius of a cylindrical QD which can describe the strength of the lateral confinement. The effects of the electric fields are less important when the effective radius is very tiny, and the effects are manifested as the effective radius increases. Meanwhile, one finds that the binding energies highly depend on the impurity positions under the applied transverse fields. When the impurity is located at the right half of the cylinder,the electric field pushes the electron to the left side, then the binding energy decreases;when the impurity is located at the left, the binding energy first increases and reaches a peak value, then deceases with the electric field. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31512]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. Wang,G. Z. Wei,G. Y. Yi. BINDING ENERGIES OF HYDROGENIC IMPURITIES ON-CENTER AND OFF-CENTER IN CYLINDRICAL QUANTUM DOTS UNDER ELECTRIC AND MAGNETIC FIELDS[J]. International Journal of Modern Physics B,2010,24(22):4293-4304. |
| APA | S. Wang,G. Z. Wei,&G. Y. Yi.(2010).BINDING ENERGIES OF HYDROGENIC IMPURITIES ON-CENTER AND OFF-CENTER IN CYLINDRICAL QUANTUM DOTS UNDER ELECTRIC AND MAGNETIC FIELDS.International Journal of Modern Physics B,24(22),4293-4304. |
| MLA | S. Wang,et al."BINDING ENERGIES OF HYDROGENIC IMPURITIES ON-CENTER AND OFF-CENTER IN CYLINDRICAL QUANTUM DOTS UNDER ELECTRIC AND MAGNETIC FIELDS".International Journal of Modern Physics B 24.22(2010):4293-4304. |
入库方式： OAI收割
来源：金属研究所
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