Rashba diamond in an Aharonov-Casher ring

Xuhui Wang, Aurelien Manchon

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Spin interference due to Rashba spin-orbit interaction(SOI) in a ballistic two-dimensional electron gas ring conductor submitted to a bias voltage is investigated theoretically. We calculate the scattering matrices and differential conductance with lead-ring junction coupling as an adjustable parameter. Due to the interference of electronic waves traversing the ring, the differential conductance modulated by both bias voltage and SOI exhibits a diamond-shaped pattern, thus termed as Rashba diamond. This feature offers a supplementary degree of freedom to manipulate phase interference.
Original languageEnglish (US)
Pages (from-to)142507
JournalApplied Physics Letters
Volume99
Issue number14
DOIs
StatePublished - Oct 7 2011

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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