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Most magnetic nanostructures today are ultrathin or nanostructured films and multilayers. The key challenge for the future will be a suitable technology to integrate and to contact nanostructures in a reliable manner. Real devices are truly 3-dimensional structures, particularly where the roughness and shape of the contact lines influences a performance to such an extent that they modify the mechanism...
We have analyzed the structural evolution of Co(t Co )/Cu(4t Co ) multilayers when t Co ranges from 12 to 2Å. The investigation has been performed by studying their magnetization (both at room and low temperatures) and giant magnetoresistance. In the intermediate range of thickness, we observe mixed multilayer granular features yielding an interesting behavior of magnetoresistance...
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