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High frequency collective excitations in molten Fe/Ni alloys studied by inelastic neutron scattering

AuthorsJiménez-Ruiz, M. ; Ruiz-Martín, M. D.; Cuello, G. J. ; Fernández-Perea, Ricardo ; Bermejo, Francisco Javier
KeywordsInelastic neutron scattering
Collective dynamics
Issue Date6-Mar-2008
CitationJournal of Alloys and Compounds 452(1): 140–142 (2008)
AbstractThe spectra of liquid 85%Fe5%Ni10%S (Tm = 1650 K) and liquid 85%Fe15%Ni have been studied by means of inelastic neutron scattering. Our aim was to explore at high frequencies some observed anomalies as reported from ultrasound studies. Contrary to the behavior of the pure liquid-metals, the phase velocity of the observed excitation for the sulfur-containing sample increases with temperature while their damping decreases. On the other hand, data of the binary Fe/Ni alloy do not show such an anomalous behavior.
Description3 pages, 2 figures.-- Available online on Jan 20, 2007.-- Issue title: Proceedings of the 12th International IUPAC Conference on High Temperature Materials Chemistry-HTMC XII (Vienna, Austria, Sep 17-22, 2006).
Publisher version (URL)http://dx.doi.org/10.1016/j.jallcom.2006.12.148
Appears in Collections:(CFMAC-IEM) Artículos
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