Abstract: The present invention introduces a method and a structure for effectively generating spin currents in a metallic electric conductor. When, for example, a conductor manufactured from copper is evenly coated with a thin carbon layer, the internal direction of the magnetic axis, i.e. the spin, of the electrons acting as charge carriers can be polarized in such a way that the spins of the set of electrons align in the area of the interface between carbon and copper. This results in intensive generation of the spin current in the coated conductor. The generation of the spin current enables reduction of losses, shortening of delays relating to signal transfer and improvement of the general immunity to interferences.