Abstract
Time-differential perturbed angular correlation was applied to measure the quadrupole coupling constants of111Cd (247 keV) at the In and Sn sites for rare-earth compounds of the series RIn3 and RSn3 that have the AuCu3 structure. Definitive evidence was found for Yb and Eu having lower valence states relative to the assumed value of +3 for the other rare earths. Measurements at liquid helium temperatures and pressures to 18.5 kbar indicate that the room temperature valencies of CeSn3, YbSn3, and YbIn3 have not changed.
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Schwartz, G.P., Shirley, D.A. Rare-earth valence-state studies of the series RIn3 and RSn3 derived from quadrupole coupling constants. Hyperfine Interact 3, 67–76 (1977). https://doi.org/10.1007/BF01021539
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DOI: https://doi.org/10.1007/BF01021539