Random magnetism in amorphous rare-earth alloys (invited)

Several aspects of the magnetic transitions seen in rare‐earth metallic glasses are discussed, particularly with reference to recent theoretical work. These include: (a) apparent double transitions observed in Gd glasses where exchange fluctuations are important, (b) evidence for a correlated speromagnetic state recently predicted by Chudnovsky and Serota, and (c) the analysis of a Tb glass with strong random anisotropy in terms of an Ising‐type spin‐glass transition.

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