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VOLUME 39 (1984) | ISSUE 4 | PAGE 174
Anomalous behavior of the probability for a Mossbauer effect in SnO2 doped with Fe
The behavior of the probability for the occurrence of the Mossbauer effect/' in U9Sn nuclei in the system (1 — x)Sn02 — *Fe203 at 295 К is studied. A minimum is observed on the curve of the concentration dependence f'(x). The depth of this curve is ~ 17% of/'(0). The appearance of the minimum could be due to the perturbing effect of impurity defects on the phonon spectrum of the matrix.