Exchange-Coupled Superlattices with Record Magnetoresistance

Аннотация

This study investigates the effect of various buffer layers on the structure and magnetoresistance of CoFe/Cu superlattices prepared by magnetron sputtering. It has been shown that, in using the (Ni₈₀Fe₂₀)₆₀Cr₄₀ and Ta/(Ni₈₀Fe₂₀)₆₀Cr₄₀ buffer layers, the magnetoresistance at room temperature can exceed 80%. The obtained results have been compared with the data available for superlattices exhibiting the maximum magnetoresistance.