Measurements of spin, magnetic moment, and electric quadrupole moment of 41.5 hIr188

Abstract

The techniques of nuclear orientation and nuclear magnetic resonance on oriented nuclei were applied to ${}_{}{}^{188}{}_{}{}^{}\mathrm{Ir}$ after recoil implantation into Fe and Ni. Combining the results of nuclear orientation and nuclear magnetic resonance on oriented nuclei, which are sensitive to the magnetic moment and the g factor, respectively, the spin of ${}_{}{}^{188}{}_{}{}^{}\mathrm{Ir}$ was determined to be I=1, in contradiction to I=2 adopted previously. In addition, the splitting of the nuclear magnetic resonance on oriented nuclei resonance into two subresonances due to quadrupole interaction was observed, which proves again I=1.