Journal
JOURNAL OF APPLIED PHYSICS
Volume 94, Issue 6, Pages 4001-4005Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1601313
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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. (C) 2003 American Institute of Physics.
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