Calculation of the temperature- and layer-thickness-dependent giant magnetoresistance in magnetic multilayers

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Abstract
The temperature and layer-thickness dependence of the magnetoresistance (MR) in magnetic multilayers is discussed with the use of the finite-temperature band theory in which the effect of spin fluctuations is taken into account by means of the static functional-integral method. It is shown that their model calculation explains well the observed MR data of Fe/Cr multilayers recently reported by Gijs and Okada.