title: Magnetoelectronic spin echo.
abstract: We predict a spin echo in electron transport through layered ferromagnetic-normal-ferromagnetic metal structures: whereas a spin current polarized perpendicular to the magnetization direction decays when traversing a single homogeneous ferromagnet on the scale of the ferromagnetic spin-coherence length, it partially reappears by adding a second identical but antiparallel ferromagnet. This reentrant transverse spin current resembles the spin-echo effect in the magnetization of nuclei under pulsed excitations. We propose an experimental setup to measure the spin echo.
authors: Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
authors: Arne
authors: A
authors: Brataas
authors: Gergely
authors: G
authors: Zaránd
authors: Yaroslav
authors: Y
authors: Tserkovnyak
authors: Gerrit E W
authors: GE
authors: Bauer