Abstract
We present the first measurement of the field dependence of thermal conductivity in Cu/Co/Cu/Ni(Fe) multilayer film which shows large magnetoresistance of 50% at low temperatures. We found a large field dependence of similar magnitude in thermal conductivity with hysteresis, which suggests that the conduction electron scattering responsible for the giant magnetoresistance is mostly large angle and elastic in nature, at least at low temperatures.
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