Rare-earth valence-state studies of the series RIn3 and RSn3 derived from quadrupole coupling constants |
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| Authors: | G P Schwartz D A Shirley |
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| Institution: | (1) Materials and Molecular Research Division, Lawrence Berkeley Laboratory and Department of Chemistry, University of California, 94720 Berkeley, California;(2) Present address: Bell Telephone Laboratories, 07974 Murray. Hill, NJ |
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| 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.Work done under the auspices of the US Energy Research and Development Administration |
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