Nuclear Quadrupole Interaction in Cadmium Metal

Abstract

The nuclear quadrupole interaction of the 247-keV level of ${}_{}{}^{111}{}_{}{}^{}\mathrm{Cd}$ in pure Cd metal has been measured by the time-differential perturbed angular correlation method. The interaction frequency ${\nu }_Q=\left(\frac{e^2\mathrm{qQ}}{h}\right)=125\mathrm{}\left(1\right)\mathrm{}$ MHz at 298°K. A measurement at 77°K shows an increase of ${\nu }_Q$ by 10% instead of a decrease expected from the contraction of the unit lattice of Cd metal.