Spin-polarized electron tunneling through a quantum dot
文献类型：期刊论文
| 作者 | Lu, Y; Sun, QF; Lin, TH; Lin, TH , Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2000 |
| 卷号 | 34期号:4页码:583-592 |
| 关键词 | Time-dependent Transport Magnetoresistance Junctions Systems |
| ISSN号 | 0253-6102 |
| 英文摘要 | Nonequilibrium Green's function is used to study spin-polarized electron tunneling through a quantum dot connected to two ferromagnetic electrodes with different orientations via two insulating barriers (FM/I/QD/I/FM). Intra-level Coulomb interaction in the dot is considered. General formula of tunneling current which can be used for arbitrary angle between the two electrodes' magnetizations is derived for both the weak and strong intra-dot interactions. We find that the transport current can be divided into two parts: the current with the spin-flip and the current without the spin-flip, which critically depend on the linewidth function near the Fermi level of the ferromagnetic electrodes. If a magnetic field is applied in the quantum dot, different behaviors will be found for weak and strong interactions. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000166949900002 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12847]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Lin, TH , Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Lu, Y,Sun, QF,Lin, TH,et al. Spin-polarized electron tunneling through a quantum dot[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,34(4):583-592. |
| APA | Lu, Y,Sun, QF,Lin, TH,&Lin, TH , Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China..(2000).Spin-polarized electron tunneling through a quantum dot.COMMUNICATIONS IN THEORETICAL PHYSICS,34(4),583-592. |
| MLA | Lu, Y,et al."Spin-polarized electron tunneling through a quantum dot".COMMUNICATIONS IN THEORETICAL PHYSICS 34.4(2000):583-592. |
入库方式： OAI收割
来源：理论物理研究所
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