1.
Phys Rev Lett
; 86(8): 1598-601, 2001 Feb 19.
Article
in English
| MEDLINE
| ID: mdl-11290202
ABSTRACT
The effect of spin-involved interaction on the transport properties of disordered two-dimensional electron systems with ferromagnetic contacts is described using a two-component model. Components representing spin-up and spin-down states are supposed to be coupled at a discrete set of points. We have found that due to the additional interference arising in two-component systems the difference between conductances for the parallel and antiparallel orientations of the contact magnetization changes its sign as a function of the length of the conducting channel.