Spin-Dependent Transport through the Finite Array of Quantum Dots: Spin Gun
| dc.creator | Avdonin, S. A. | |
| dc.creator | Dmitrieva, L. A. | |
| dc.creator | Kuperin, Yu. A. | |
| dc.creator | Sartan, V. V. | |
| dc.date | 2003-10-27 | |
| dc.date | 2003-11-18 | |
| dc.date.accessioned | 2026-07-07T02:54:26Z | |
| dc.date.available | 2026-07-07T02:54:26Z | |
| dc.description | The problem of spin-dependent transport of electrons through a finite array of quantum dots attached to 1D quantum wire (spin gun) for various semiconductor materials is studied. The Breit-Fermi term for spin-spin interaction in the effective Hamiltonian of the device is shown to result in a dependence of transmission coefficient on the spin orientation. The difference of transmission probabilities for singlet and triplet channels can reach few percent for a single quantum dot. For several quantum dots in the array due to interference effects it can reach approximately 100% for some energy intervals. For the same energy intervals the conductance of the device reaches the value $\approx 1$ in $[e^{2}/π\hbar]$ units. As a result a model of the spin-gun which transforms the spin-unpolarized electron beam into completely polarized one is suggested. | |
| dc.description | 10 pages, 5 figures; added acknowledgments | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0310632 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0310632 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22547 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Spin-Dependent Transport through the Finite Array of Quantum Dots: Spin Gun | |
| dc.type | text |