Hyperfine-interaction-driven Aharonov-Bohm effect in mesoscopic rings
DOI:
https://doi.org/10.1063/1.593507Ключові слова:
PACS: 31.30.Gs, 72.15.Rn, 73.23.PsАнотація
It is shown qualitatively that lifting of the electron spin degeneracy by a hyperfine field, which is generated by a nonequilibrium nuclear spin distribution, and breaking of the left-right symmetry by the spin-orbit interaction in a closed ring produces under certain conditions a persistent current, which demonstrates the Aharonov-Bohm-like oscillations with time in GaAs/AlGaAs-based mesoscopic rings even in the absence of an external magnetic field. The typical time interval of these (meso-nucleospinic) oscillations is of the order of several seconds, which is typical of the nuclear spin relaxation times in heterojunctions.Завантаження
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Опубліковано
1997-12-10
Як цитувати
(1)
Vagner, I. D.; Wyder, P.; Rozhavsky, A. S. Hyperfine-Interaction-Driven Aharonov-Bohm Effect in Mesoscopic Rings. Fiz. Nizk. Temp. 1997, 23, 1305-1308.
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Низькоpозмірні та невпорядковані системи