Szczegóły publikacji
Opis bibliograficzny
Electron transfer through a multiterminal quantum ring: magnetic forces and elastic scattering effects / B. SZAFRAN, M. R. PONIEDZIAŁEK // Physical Review . B, Condensed Matter and Materials Physics ; ISSN 1098-0121. — Tytuł poprz.: Physical Review B : Condensed Matter. — 2009 — vol. 80 iss. 15, s. 155334-1–155334-8. — Bibliogr. s. 155334-7–155334-8
Autorzy (2)
Dane bibliometryczne
| ID BaDAP | 48695 |
|---|---|
| Data dodania do BaDAP | 2009-11-27 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.80.155334 |
| Rok publikacji | 2009 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, B |
Abstract
We study electron transport through a semiconductor quantum ring with one input and two output terminals for an elastic scatterer present within one of the arms of the ring. We demonstrate that the scatterer not only introduces asymmetry in the transfer probability to the two output leads but also reduces the visibility of the Aharonov-Bohm conductance oscillations. This reduction occurs in spite of the phase coherence of the elastic scattering and is due to interruption of the electron circulation around the ring by the potential defect. The results are in qualitative agreement with a recent experiment by Strambini. We also indicate that the magnetic symmetry of the sum of conductance of both the output leads as obtained in the experiment can be understood as resulting from the invariance of backscattering to the input lead with respect to the magnetic field orientation. © 2009 The American Physical Society.
