KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
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AbstractSpin 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.
CitationRashba diamond in an Aharonov-Casher ring 2011, 99 (14):142507 Applied Physics Letters
JournalApplied Physics Letters