Collective excitations in a liquid alloy

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, , Citation G Jacucci and I R McDonald 1980 J. Phys. F: Met. Phys. 10 L15 DOI 10.1088/0305-4608/10/1/003

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1 Dipartimento di Matematica e Fisica, Libera Univ. di Trento, Povo, Trento, Italy

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0305-4608/10/1/L15

Abstract

Molecular-dynamics calculations are reported for a system simulating a liquid Na-K alloy. A propagating sound mode is observed, but its detection by neutron-scattering techniques is likely to be difficult because the decay of density fluctuations is dominated by interdiffusion. No evidence has been found of any propagating concentration fluctuation.

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