Hyperfine-interaction-driven Aharonov-Bohm effect in mesoscopic rings

Автор(и)

  • I. D. Vagner Grenoble High Magnetic Field Laboratory Max-Planck-Institut fur Festkorperforschung and Centre Nationale de la Recherche Scientifique, BP 166, 38042 Grenoble Cedex 09, France
  • P. Wyder Grenoble High Magnetic Field Laboratory Max-Planck-Institut fur Festkorperforschung and Centre Nationale de la Recherche Scientifique, BP 166, 38042 Grenoble Cedex 09, France
  • A. S. Rozhavsky B. I. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47, Lenin Ave., 310164, Kharkov, Ukraine

DOI (Low Temperature Physics):


https://doi.org/10.1063/1.593507

Ключові слова:

PACS: 31.30.Gs, 72.15.Rn, 73.23.Ps

Анотація

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.

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Опубліковано

1997-12-10

Як цитувати

(1)
I. D. Vagner, P. Wyder, and A. S. Rozhavsky, Hyperfine-interaction-driven Aharonov-Bohm effect in mesoscopic rings, Low Temp. Phys. 23, (1997) [Fiz. Nizk. Temp. 23, 1305-1308, (1997)] DOI: https://doi.org/10.1063/1.593507.

Номер

Том 23 № 12 (1997)

Розділ

Низькоpозмірні та невпорядковані системи

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