Abstract
The quadrupole interactions of the ${2}^{+}$ states of $^{182,184,186}\mathrm{W}$ have been studied by using time-integrated perturbed angular correlations after Coulomb excitation. The experiments have been performed by using 40-MeV $^{16}\mathrm{O}$ ions to implant the tungsten nuclei in zinc single crystals of hexagonal structure. A strong electric quadrupole interaction has been observed and the electric field gradient acting on W in Zn has been evaluated using values for the quadrupole moments derived from $E2$ transition probabilities and the rotational model.
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