Magnetic Field Effects on Thermopower ofFe/Cr and Cu/Co/Cu/Ni(Fe) Multilayers

Abstract

We measured the thermopower under magnetic field (magneto-thermopower) on artificial metallic mutilayers, Fe/Cr and Cu/Co/Cu/Ni(Fe), which have been reported to show the giant magnetoresistance. The magneto-thermopower for these samples was also found to be remarkably large, corresponding to their giant magnetoresistance. The magneto-thermopower on Fe/Cr multilayers was observed to change its sign with temperature variation.