Conductance oscillations in a mesoscopic ring threaded by a harmonically time-dependent magnetic flux
We consider a microscopic model for a one-dimensional ring of non-interacting electrons threaded by a magnetic flux of the form Φ(t)= Φ0Φ1cos( Ω0t). The ring is attached to two reservoirs at which a bias voltage is applied. We focus on small amplitudes of Φ1, and we analyze the behavior of the condu...
| Autores principales: | , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09214526_v407_n16_p3256_FlorenciaLudovico |
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| Sumario: | We consider a microscopic model for a one-dimensional ring of non-interacting electrons threaded by a magnetic flux of the form Φ(t)= Φ0Φ1cos( Ω0t). The ring is attached to two reservoirs at which a bias voltage is applied. We focus on small amplitudes of Φ1, and we analyze the behavior of the conductance as a function of Φ0. We solve the problem by means of non-equilibrium Green function techniques. © 2011 Elsevier B.V. All rights reserved. |
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