Spontaneous spin polarized tunneling current through a quantum dot array
| dc.creator | Kuo, David M. -T. | |
| dc.creator | Chang, Y. -C. | |
| dc.date | 2002-09-20 | |
| dc.date.accessioned | 2026-07-07T02:47:22Z | |
| dc.date.available | 2026-07-07T02:47:22Z | |
| dc.description | We show theoretically that a strongly spin-polarized current can be generated in semiconductors by taking advantage of the ferromagnetic phase of a quantum dot array (QDA). A Hubbard model with coupling to leads is used to study the tunneling current of the QDA system as a function of gate voltage. Due to the weak interdot coupling and strong Coulomb repulsion, it is found that a ferromagnetic phase exists in QDA within a window of gate voltage. Therefore QDA can be used as a spin filter to detect and control spin states in quantum information devices. | |
| dc.description | 3 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0209499 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0209499 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/19986 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Spontaneous spin polarized tunneling current through a quantum dot array | |
| dc.type | text |