Metal-insulator transition in a quantum well under the influence of electric field
文献类型：期刊论文
| 作者 | Peter, AJ; Navaneethakrishnan, K |
| 刊名 | PHYSICA B-CONDENSED MATTER
 |
| 出版日期 | 2005-09-01 |
| 卷号 | 366页码:146-152 |
| 关键词 | metal-insulator transition quantum well system impurity state donor energy polarizability |
| ISSN号 | 0921-4526 |
| DOI | 10.1016/j.physb.2005.05.031 |
| 英文摘要 | Ionization energies and the polarizabilites of a shallow donor in a quantum well of the GaAs/Ga1-xAlxAs superlattice system are obtained. In the presence of an electric field, a variational procedure within the effective mass approximation is employed. Within the one-electron approximation the occurrence of Mott transition is seen when the binding energy of a donor vanishes. The effects of Anderson localization and exchange and correlation in the Hubbard model are included in our model. It is found that the ionization energy (i) decreases as well width increases for a given electric field, (ii) decreases when well width increases, and (iii) the critical concentration at which the metal-insulator transition occurs is reduced in an external electric field. All the calculations have been carried out with finite and infinite barriers and the results are compared with available data in the literature. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS关键词 | 2 DIMENSIONS ; IMPURITY STATES ; DONORS ; DIFFUSION ; SPECTRA ; SYSTEMS ; ABSENCE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000231397600018 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/25557]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Peter, AJ |
| 作者单位 | 1.Zhejiang Univ, Inst Modern Phys, Hangzhou 310027, Peoples R China 2.Madurai Kamaraj Univ, Sch Phys, Madurai 625021, Tamil Nadu, India |
| 推荐引用方式 GB/T 7714 | Peter, AJ,Navaneethakrishnan, K. Metal-insulator transition in a quantum well under the influence of electric field[J]. PHYSICA B-CONDENSED MATTER,2005,366:146-152. |
| APA | Peter, AJ,&Navaneethakrishnan, K.(2005).Metal-insulator transition in a quantum well under the influence of electric field.PHYSICA B-CONDENSED MATTER,366,146-152. |
| MLA | Peter, AJ,et al."Metal-insulator transition in a quantum well under the influence of electric field".PHYSICA B-CONDENSED MATTER 366(2005):146-152. |
入库方式： OAI收割
来源：近代物理研究所
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