Pressure Variation of the Quadrupole Interaction in Cadmium Metal

Abstract

A theoretical study, for the first time, of the electric field gradient in cadmium metal at two pressures yields a pressure variation in agreement with time-differential perturbed-angular-correlation data. The sign of the net electric field gradient determined by the electronic contribution, which is larger and of opposite sign to the ionic contribution, in conjunction with imminently expected experimental sign of the coupling constant, will provide the sign of the excited ${\mathrm{Cd}}^{111}$ quadrupole moment.