Szczegóły publikacji
Opis bibliograficzny
Spin-polarization anisotropy in a narrow spin-orbit-coupled nanowire quantum dot / M. P. NOWAK, B. SZAFRAN // Physical Review. B, Condensed Matter and Materials Physics ; ISSN 1098-0121. — Tytuł poprz.: Physical Review B : Condensed Matter. — 2013 — vol. 87 iss. 20, s. 205436-1–205436-7. — Bibliogr. s. 205436-6–205436-7
Autorzy (2)
Dane bibliometryczne
| ID BaDAP | 75025 |
|---|---|
| Data dodania do BaDAP | 2013-09-11 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.87.205436 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, B |
Abstract
One- and two-electron systems confined in single and coupled quantum dots defined within a nanowire with a finite radius are studied in the context of spin-orbit coupling effects. The anisotropy of the spin-orbit interaction is discussed in terms of the system geometry and orientation of the external magnetic field vector. We find that there are easy and hard spin-polarization axes, and in the quantum dot with strong lateral confinement electron spin becomes well defined in spite of the presence of spin-orbit coupling. We present an analytical solution for the one-dimensional limit and study its validity for nanowires of finite radii by comparing the results with a full three-dimensional calculation. The results are also compared with the recent measurements of the effective Lande factor and avoided crossing width anisotropy in InSb nanowire quantum dots [S. Nadj-Perge et al., Phys. Rev. Lett. 108, 166801 (2012)].
