The magnetic interaction between Co clusters have been studied for the melt-spun CoxCu1-x systems. Superparamagnetic character of these clusters can be verified by the superimposition of the magnetization versus H/T curves. These curves also allow us to check, by means of the molecular field approximation, that there is an antiferromagnetic like coupling between the single domain Co clusters. This molecular field, which is in fact proportional to the magnetization, could be due to dipole-dipole, as well as to RKKY like, interactions.
Magnetic interactions in melt spun CoCu system / A. Gonzalez;P. Tiberto;A. Garcia-Escorial;D. Paramo;J. P. Sinnecker;P. Allia;A. Hernando. - In: JOURNAL DE PHYSIQUE IV. - ISSN 1155-4339. - 8(1998), pp. 343-346.