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Magneto-transport in a mesoscopic ring with Rashba and Dresselhaus spin-orbit interactions

By Santanu K. Maiti, Moumita Dey, Shreekantha Sil, Arunava Chakrabarti and S. N. Karmakar

Abstract

Electronic transport in a one-dimensional mesoscopic ring threaded by a magnetic flux is studied in the presence of Rashba and Dresselhaus spin-orbit interactions. A completely analytical technique within a tight-binding formalism unveils the spin-split bands in the presence of the spin-orbit interactions and leads to a method of determining the strength of the Dresselhaus interaction. In addition to this, the persistent currents for ordered and disordered rings have been investigated numerically. It is observed that the presence of the spin-orbit interaction, in general, leads to an enhanced amplitude of the persistent current. Numerical results corroborate the respective analytical findings

Publisher: 'IOP Publishing'
Year: 2011
DOI identifier: 10.1209/0295-5075/95/57008
OAI identifier: oai:edpsciences.org:dkey/10.1209/0295-5075/95/57008
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