Elemental And Alloy Clusters

The detailed magnetic behavior of Fe clusters has been studied for the films with Fe clusters embedded in Ag [34]. In UHV conditions, preformed Fe clusters with a mean diameter of 3 nm from a gas-aggregation source were deposited in conjunction with atomic Ag vapor. In such films clusters can come into direct contact and interact via exchange. Films containing Fe cluster volume fraction from 1 % (isolated clusters) to 100% (pure clusters with no matrix) have been studied at temperatures ranging from 2 to 300 K by magnetometry and field-cooled (FC)/zero-field-cooled (ZFC) measurements. 

Formation of Ni clusters by gas aggregation technique was reported by Flihara et al [36]. The cluster growth models were discussed but there are no magnetic data for Ni clusters yet. 

Compared with the heat of formation of Tlo CoPt, another important L10 phase FePt has a larger value (-25 kJ/mol) [42]. The ordering temperature 

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