Abstract

Magnetism of crystalline and amorphous Cobalt models containing 1000 particles has been studied using Monte-Carlo method and Ising model. The exchange interaction parameter has been used as a function of an interparticle distance. The Curie temperatures of these models have been determined about 1380 K and 1100 K respectively, which are in good agreement with experimental data.... The spontanneous magnetization of the amorphous Cobalt at low temperatures is equal about 99% of the spontaneous magnetization of crystalline Cobalt. Magnetizations of the fcc and amorphous Co follow Bloch's law at low tempperatures and followWeiss's law at high temperatures. Local magnetism in the amorphous Cobalt model has been investigated by the spin distribution in the model.