Abstract
The field (H) dependence of the muon longitudinal spin-lattice relaxation rate well below the spin glass temperature inAgMn is found to obey an algebraic form given by (H) v −1 withv=0.54±0.05. This suggests that Mn spin correlations decay with time ast −v , in agreement with mean field theories of spin-glass dynamics which yieldv≲0.5. Near the glass temperature the agreement between the data and theory is not as good.
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