R. Coehoorn et Jpwb. Duchateau, COMPOSITION DEPENDENCE OF THE MAGNETORESISTANCE AND THE OSCILLATORY EXCHANGE INTERACTION IN FE-CO-NI CU (FCC, 100) MULTILAYERS/, Journal of magnetism and magnetic materials, 126(1-3), 1993, pp. 390-393
The composition and temperature dependence of the magnetoresistance (M
R) ratio and exchange coupling strength have been measured for antifer
romagnetically coupled Fe-Co-Ni/Cu multilayers with coherent gamma-pha
se (fcc,100) structures. The MR ratio shows a maximum for Co/Cu system
s, and the coupling strength is maximal for Co90Fe10/Cu systems. The c
ompositional variation of the coupling parameter cannot be explained f
rom the RKKY model.