Abstract
Major results of muon-spin-relaxation (µSR) studies on canonical and oxide spin glasses are discussed. The metallic spin glasses AgMn, AuFe, CuMn, and CuFe and the oxide spin glass Fe2Ti05 are highlighted. The µSR work shows clearly that below the spin-glass temperature (Tg) both slow and rapid spin fluctuations occur. Single-crystal µSR investigations indicate that the freezing process in spin glasses is spatially inhomogeneous, whereas polyerystalline-sample µSR results point toward a dominantly homogeneous freezing process. Currently, the model descriptions of the dynamics in spin glasses observed above Tg are not unanimous; anisotropy appears to be the necessary ingredient to attempt to solve this problem in spin dynamics.KeywordsSpin GlassSpin DynamicTransverse SpinSpin ClusterSpin FreezingThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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