The Nuclear Quadrupole Interaction of 204mPb in Cadmium Monitored by – –Perturbed Angular Correlations

For the first time the nuclear probePb was produced at the on-line isotope separator ISOLDE at CERN and used for time differential perturbed angular correlation experiments. The electric field gradient of Pb at room temperature in Cd metal was determined to be Vzz = 19(1) 10 V/m. Ab initio-calculations of the electric field gradient for the impurities Pt to Bi in cadmium were performed with the full-potential linearized augmented plane waves code WIEN97 to interpret this result. For Au, Hg and Pb, where experimental results are now available, these agree with the calculations within 10 %.