Spin Filter Effect in a Parallel Double Quantum Dot |
| |
| Authors: | F. Mireles F. Rojas E. Cota S. E. Ulloa |
| |
| Affiliation: | 1.Departamento de Física Teórica,Centro de Ciencias de la Materia Condensada - UNAM,Ensenada,México;2.Department of Physics and Astronomy and Nanoscale and Quantum Phenomena Institute,Ohio University,Athens |
| |
| Abstract: | We present a theoretical study of the spectral and the spin-dependent transport properties of a few electron semiconductor parallel double quantum dot (DQD) in the presence of local induced Zeeman splittings at the quantum dots. Working in an extended Hubbard model and treating the coupled QD as a single coherent system, the linear response spin-dependent conductance is calculated at low temperatures. We analyze the conditions such that the device would operate as a bipolar spin filter by only varying the incident electron Fermi energy from non-magnetic leads. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
