Collective dynamics in molten potassium: An inelastic x-ray scattering study

A. Monaco*, T. Scopigno, P. Benassi, Andrea Giugni, G. Monaco, M. Nardone, G. Ruocco, M. Sampoli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The high-frequency collective dynamics of molten potassium was disucssed using inelastic x-ray scattering. It was found that a two-step relaxation scenario similar to that found in other liquid metals applied to liquid potassium. It was found that the Brillouin linewidth was not related to the whole longitudinal velocity but rather to the 'microscopic' part of the viscosity. The microscopic relaxation process which were traced back to the presence of 'instantaneous' disorder rather than to the crossover from a liquid to solidlike response was also elaborated.

Original languageEnglish (US)
Pages (from-to)8089-8094
Number of pages6
JournalJournal of Chemical Physics
Volume120
Issue number17
DOIs
StatePublished - May 1 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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