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  • 1
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Zero — field muon spin relaxation measurements have been carried out on a high-quality single-crystal sample of the paramagnetic heavy-fermion compound CeRu2Si2 from 5K to 300K. The observed relaxation at each temperature was well fitted by a function described by the product of a Kubo-Toyabe type and an exponential one. The temperature dependence of the Kubo-Toyabe relaxation rate σZF shows an almost constant value (0.03 μs−1) which is comparable to the calculated linewidth due to nuclear dipole fields from99Ru and101Ru atoms assuming the possible μ+ stopping sites for the ThCr2Si2 structure. On the other hand, we observed an increase of the exponential relaxation rate λZF to a value of ∼- 0.02 μs−1 with decreasing temperature below about 100K. This suggests a contribution of Ce 4f moments.
    Type of Medium: Electronic Resource
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