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

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

2011-03-02

arxiv.org/abs/1103.0436v2

Europhysics Letters, Volume 95, Page 57008 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 7 figures

Scientific paper

10.1209/0295-5075/95/57008

Electronic transport in a one-dimensional mesoscopic ring threaded by a magnetic flux is studied in presence of Rashba and Dresselhaus spin-orbit interactions. A completely analytical technique within a tight-binding formalism unveils the spin-split bands in 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.

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