Ballistic spin transport through electronic stub tuners: spin precession, selection, and square-wave transmission

Details Ballistic spin transport through electronic stub tuners: spin precession, selection, and square-wave transmission Ballistic spin transport through electronic stub tuners: spin precession, selection, and square-wave transmission

2002-04-18

arxiv.org/abs/cond-mat/0204391v1

Appl. Phys. Lett. 80, 1400 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 4 figures

Scientific paper

10.1063/1.1455146

Ballistic spin transport is studied through electronic tuners with double stubs attached to them. The spins precess due to the spin-orbit interaction. Injected polarized spins can exit the structure polarized in the opposite direction. A nearly square-wave spin transmission, with values 1 and 0, can be obtained using a periodic system of symmetric stubs and changing their length or width. The gaps in the transmission can be widened using asymmetric stubs. An additional modulation is obtained upon combining stub structures with different values of the spin-orbit strength.

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