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Persistent URL http://purl.org/net/epubs/work/42381
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Record Id 42381
Title Temperature-dependent next neighbour dynamics in liquid lead
Abstract The temperature dependence of the density correlation function at next-neighbour distances has been investigated for the liquid metal lead. This correlation function is a sensitive parameter for changes in the local environment and its Fourier transform was measured in a coherent inelastic neutron scattering experiment. The zero-frequency amplitude related to the long time decay of density fluctuations decreases in a nonlinear way and indicates a change in dynamics above the melting point. The derived generalized longitudinal viscosity shows a decrease near this temperature range. From these observations we suppose that solidification sets in on a microscopic level distinct above the melting point.
Organisation ISIS , ISIS-OSIRIS , STFC
Keywords Physics
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article J Phys-Condens Mat 20 (2008): 205106. doi:10.1088/0953-8984/20/20/205106 deg_leadiop.pdf 2008
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