Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2008-04-28
Physics
Condensed Matter
Disordered Systems and Neural Networks
6 pages, 4 figures, to appear in "Journal of Chemical Physics"
Scientific paper
Owing to their large relatively thermal conductivity, peculiar, non-hydrodynamic features are expected to characterize the acoustic-like excitations observed in liquid metals. We report here an experimental study of collective modes in molten nickel, a case of exceptional geophysical interest for its relevance in Earth interior science. Our result shed light on previously reported contrasting evidences: in the explored energy-momentum region no deviation from the generalized hydrodynamic picture describing non conductive fluids are observed. Implications for high frequency transport properties in metallic fluids are discussed.
Cazzato Stefano
Hosokawa Shunsuke
Inui M.
Pilgrim W. C.
Ruocco Giancarlo
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