The Aharonov-Bohm effect in a mesoscopic ring of diluted magnetic alloy

Falko, Vladimir (1992) The Aharonov-Bohm effect in a mesoscopic ring of diluted magnetic alloy. Journal of Physics: Condensed Matter, 4 (15). pp. 3943-3954. ISSN 0953-8984

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Abstract

The spin dynamics of magnetic impurities is shown to play a crucial role in mesoscopic effects. It follows from this analysis that the quantum magnetoconductance oscillations in a mesoscopic ring of a diluted magnetic alloy are gradually suppressed in the paramagnetic regime, whereas a strong magnetic field forbids spin-flip processes and restores the mesoscopic Aharonov-Bohm oscillations with an amplitude limited by the efficiency of electron escape to the bulk. This effect is examined analytically using a model of a quasi one-dimensional ring joined to the electrodes by tunnelling contacts or short leads.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Physics: Condensed Matter
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
57099
Deposited By:
Deposited On:
05 Sep 2012 16:59
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:04