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We have observed large-amplitude strain waves following a rapid change in density of InSb due to nonthermal melting. The strain has been measured in real time via time-resolved x-ray diffraction, with a temporal resolution better than 2 ps. The change from the solid to liquid density of the surface layer launches a high-amplitude strain wave into the crystalline material below. This induces an eff
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We have grown Au seeded InAs nanowires using chemical beam epitaxy and report on the growth rate dependence on nanowire diameter. We find a maximum of the growth rate at a nanowire diameter of 25 nm, below which the growth rate decreases due to the Gibbs-Thomson effect. Above the maximum, the growth rate decreases with increasing diameter due to the effect of material diffusion to the growth point