Spin-dependent peltier effect in Co/Cu multilayer nanowires

Heat transport perpendicular to the plane of magnetic multilayers is monitored with ac temperature gradients in the presence of a direct charge current. A very strong dependence on the applied magnetic field of the voltage response to the ac gradient is observed using Co/Cu multilayered nanowires. The effect is interpreted as a Peltier effect for a one-dimensional heat flux. (c) 2005 American Institute of Physics.