id: 05360495
dt: j
an: 05360495
au: Fei, Hong-Ming; Li, Zhi-Jian; Nie, Yi-Hang; Liang, Jiu-Qing
ti: Spin rotation and polarization of transport electrons through a
    three-electrode Aharonov-Bohm ring with spin-orbit coupling.
so: Mod. Phys. Lett. B 22, No. 17, 1661-1672 (2008).
py: 2008
pu: World Scientific, Singapore
la: EN
cc: 
ut: mesoscopic ring; spin-orbit interaction; $S$-matrix
ci: 
li: doi:10.1142/S0217984908016315
ab: Summary: The quantum transport of electrons through a three-lead ballistic
    Aharonov-Bohm (AB) ring with the Rashba spin-orbit interaction is
    revisited in terms of the $S$-matrix method from which the transmission
    probabilities are obtained analytically. It is shown that this
    mesoscopic device indeed can act as a spin-filter resulting in a
    relative spin-rotation between the input and output states while can
    act as a spin polarizer or splitter for a completely unpolarized,
    mixture input-state. In contrast with the result of Griffith’s
    boundary conditions, the backscattering of carriers on the junction
    does not allow this three-terminal device to have unit efficiency. In
    addition, we point out that the AB ring with two symmetrically situated
    output leads also can give rise to the redistribution of the outgoing
    currents with respect to the variation of magnetic flux.
rv: