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Comparison of spin-glass dynamics determined by the muon-spin-relaxation and neutron spin-echo techniques

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)
Impurity-spin-correlation functions obtained from muon-spin-relaxation and neutron spin-echo experiments are found to agree quantitatively above and below the ''glass'' temperature T/sub g/. The agreement confirms the power-law decay of correlations in time near and below T/sub g/. Features of the experimental results which depend on (quasi)static impurity-spin correlations suggest that the spatial distribution of thermally averaged impurity-spin magnitudes is quite uniform below T/sub g/. The stochastic behavior of dipolar fields at muon sites is essentially the same as that of the impurity spins themselves at all temperatures.
Research Organization:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
OSTI ID:
6684872
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 29:11; ISSN PRBMD
Country of Publication:
United States
Language:
English