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.
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Sakurai et al. (1991) studied this question.
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