Aharonov-Casher effect in quantum ring ensembles

Fateme K. Joibari, Ya M. Blanter, Gerrit E.W. Bauer

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We study the transport of electrons through a single-mode quantum ring with electric-field induced Rashba spin-orbit interaction that is subject to an in-plane magnetic field and weakly coupled to electron reservoirs. Modeling a ring array by ensemble averaging over a Gaussian distribution of energy-level positions, we predict slow conductance oscillations as a function of the Rashba interaction and electron density due to spin-orbit interaction induced beating of the spacings between the levels crossed by the Fermi energy. Our results agree with experiments by Nitta c.s. [J. Nitta, J. Takagi, F. Nagasawa, and M. Kohda, J. Phys.: Conference Series1742-659610.1088/1742-6596/302/1/012002 302, 012002 (2011) and Nagasawa (unpublished)], thereby providing an interpretation that differs from the ordinary Aharonov-Casher effect in a single ring.

Original languageEnglish
Article number115410
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number11
Publication statusPublished - 2013 Sept 5

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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