Journal
APPLIED PHYSICS LETTERS
Volume 84, Issue 6, Pages 996-998Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1644914
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We investigate quantum spin transport in a structure of a conducting ring embedded in a textured electric field with two leads, and obtain an exact solution for the problem. The spin precession induced by the Aharonov-Casher phase is studied. It is shown that the spin-polarized current and its polarization orientation can be controlled by the electric field. As a result the modulated polarization orientation is a function of the geometric phase which originates from spin-orbital interaction in the ring. (C) 2004 American Institute of Physics.
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