2002/03/12 by A. A. Kiselev, K. W. Kim
Chemistry · Computer Science · Engineering · Physics and Astronomy · #Chemistry #Condensed matter physics #Electrical engineering #Engineering #Filter (signal processing) #Materials science #Optoelectronics #Physics #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum optics and atomic interactions #Resonator #Ring (chemistry) #Spin (aerodynamics) #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.1601313
published as J. Appl. Phys. 94, 4001 (2003) · 4 pages, RevTeX, two EPS figures
arxiv created 2002/03/12 · openalex publication_date 2003/09/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A planar ballistic T-shaped structure with a ring resonator attached is shown to be highly effective in filtering electron spin from an unpolarized source into two output fluxes with opposite and practically pure spin polarizations. The operability of the proposed device relies on the peculiar spin-dependent transmission properties of the T-shaped connector in the presence of Rashba spin–orbit interaction as well as the difference in dynamic phase gain of the two alternative paths around the ring resonator through upper and lower branches for even and odd eigenmodes.