Abstract
A formula is derived for the quadrupole relaxation rate in liquid metals using the screened ion model given by Sholl as a basis. The rate is given in terms of the dynamic structure factor and the average pair and triplet atomic distributions. For short-range electric field gradients calculations for liquid mercury of the temperature dependence of the relaxation rate reveal an approximate T-1/2 law in good agreement with that observed. The theory is also extended to cover binary alloys where the temperature dependence in pure metals and alloys is shown to be a consequence of the atomic distributions rather than any fundamental change in the relaxation mechanism.
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