Comment on ``Jellium model of metallic nanocohesion''
Abstract
In a recent letter Stafford, Baeriswyl and Burki have provided a simple model for the elastic force in metallic constrictions of nanometer size. By employing a semiclassical Weyl expansion for the density of states of transverse modes, we show that for any smooth cross section, there is a universal contribution (4 epsilonF)/(9 lambdaF) to the average force which is absent in the presence of a hole.
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