Aharonov-Bohm effect in a mesoscopic ring in a nonstationary magnetic field
M V Entin; M M Mahmoodian; M V Entin; Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences and Novosibirsk State University, Novosibirsk 630090, Russia; M M Mahmoodian; Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences and Novosibirsk State University, Novosibirsk 630090, Russia
Журнал:
Journal of Physics: Condensed Matter
Дата:
2000-07-31
Аннотация:
Quantum corrections to the conductivity of a mesoscopic ring in a nonstationary magnetic field with the flux Φ(t) = Vt are investigated. The time dependence of the quantum corrections shows periodic cusps with a period corresponding to the magnetic flux quantum Φ<sub>0</sub> = hc/2e. If the characteristic time of the magnetic flux variation τ<sub>0</sub> = Φ<sub>0</sub>/V is much smaller than the phase relaxation time τ<sub>φ</sub>, the cusps become asymmetrical.
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