Showing papers by "Sidney R. Nagel published in 1975"
TL;DR: In this paper, a nearly free-electron model for explaining the relative stability of some metallic alloys against crystallization is proposed, and the maximum stability corresponds to the composition for which the Fermi level lies at a minimum of the density of states.
Abstract: A nearly-free-electron model for explaining the relative stability of some metallic alloys against crystallization is proposed. Arguments are presented which show that in an alloy the maximum stability corresponds to the composition for which the Fermi level lies at a minimum of the density of states. In this case any small enough perturbation around this configuration will increase the total electron energy. This approach predicts the correct composition range of metal glasses.
452 citations
19 citations
TL;DR: In this paper, the authors examined optical and energy-loss data on a variety of metals in light of a recently proposed two-carrier model of metallic optical conductivity in which the two carriers are electrons located in crystallites and in grain boundaries, respectively.
Abstract: We examine optical and energy-loss data on a variety of metals in light of a recently proposed two-carrier model of metallic optical conductivity in which the two carriers are electrons located in crystallites and in grain boundaries, respectively. We find that many of the published measurements of optical properties of metals appear to be strongly influenced by sample crystallinity and that these measurements support this simple model.
15 citations
TL;DR: In this paper, the dielectric function of CsCl was analyzed in an Argand diagram and it was found that it consists almost entirely of resonance loops, which is useful for finding resonances and critical points, as well as for interrelating various experimental quantities, such as reflectivity, absorption, and energy loss spectra.
7 citations