Abstract
The static electric quadrupole interaction of111Cd in the heavy rare metals Gd, Tb, Ho and Er has been studied at room temperature by time differential perturbed angular correlation techniques. From these measurements the effective electric field-gradient,V eff zz , at the Cd-site was derived on a relative scale. The lattice contributions,V latzz , to the total electric fieldgradient have been determined by lattice-sum calculations. The ratioα=V eff zz /V lat zz , which to a certain extent represents the conduction electron contribution to the electric fieldgradient, decreases with increasing atomic number. Possible reasons for this behaviour are discussed.
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The authors are indebted to Prof. Bodenstedt for his kind interest and support of this work. The generous financial support by the Bundesministerium für Forschung und Technologie is gratefully acknowledged. The numerical calculations have been performed on the IBM 370 computer of the Gesellschaft für Mathematik und Datenverarbeitung Bonn.
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Fechner, J.B., Forker, M. & Schäfer, G. The electric fieldgradient at Cd-impurities in heavy rare earth metals. Z. Physik 265, 197–206 (1973). https://doi.org/10.1007/BF01394657
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DOI: https://doi.org/10.1007/BF01394657