Abstract
Measurements of 151Eu Mössbauer isomer shifts in the alloys La x Eu 1− x Pd 2Si 2 ( x = 0.3, 0.5) suggest the presence of both divalent europium and europium ions with fluctuating valence in these alloys. The intensity of the resonance exhibits an unusual temperature dependence in both alloys and the origin of this anomaly is attributed to the valence fluctuation phenomenon.
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