Dephasing of Aharonov-Bohm oscillations in a mesoscopic ring with a magnetic impurity

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dc.creatorJoshi, Sandeep K.
dc.creatorSahoo, Debendranath
dc.creatorJayannavar, A. M.
dc.date2000-07-26
dc.date.accessioned2026-07-07T02:38:19Z
dc.date.available2026-07-07T02:38:19Z
dc.descriptionWe present a detailed analysis of the Aharonov-Bohm interference oscillations manifested through transmission of an electron in a mesoscopic ring with a magnetic impurity atom inserted in one of its arms. The electron interacts with the impurity through the exchange interaction leading to exchange spin-flip scattering. Transmission in the spin-flipped and spin-unflipped channels are explicitly calculated. We show that the spin-flipper acts as a dephasor in spite of absence of any inelastic scattering. The spin-conductance (related to spin-polarized transmission coefficient) is asymmetric in the flux reversal as opposed to the two probe conductance which is symmetric under flux reversal.
dc.description4 pages RevTex, 6 figures, brief report
dc.identifierhttps://arxiv.org/abs/cond-mat/0007414
dc.identifierhttp://arxiv.org/abs/cond-mat/0007414
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16624
dc.subjectMesoscale and Nanoscale Physics
dc.titleDephasing of Aharonov-Bohm oscillations in a mesoscopic ring with a magnetic impurity
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