2004/01/06 by X. F. Wang · 4 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Condensed matter physics #Electron #Engineering #Ferromagnetism #Magnetic properties of thin films #Orbit (dynamics) #Physics #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Rashba effect #Spin (aerodynamics) #Spin engineering #Spin polarization #Spintronics #Spin–orbit interaction #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.69.035302
published as P.R.B 69, 035302 (2004)
openalex publication_date 2004/01/06 · arxiv created 2004/01/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study ballistic transport of spin-polarized electrons through quantum wires in which the Rashba spin-orbit interaction (SOI) is spatially modulated. Subband mixing, due to SOI, between the two lowest subbands is taken into account. Simplified approximate expressions for the transmission are obtained for electron energies close to the bottom of the first subband and near the value for which anticrossing of the two lowest subbands occurs. In structures with periodically varied SOI strength, square-wave modulation on the spin transmission is found when only one subband is occupied and its possible application to the spin transistor is discussed. When two subbands are occupied the transmission is strongly affected by the existence of SOI interfaces as well as by the subband mixing.