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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/1082

Title: Observation of the collective vibrational modes in Ni42Nb58 metallic glass.
Authors: Syrykh, GF
Zemlyanov, MG
Ivanov, AS
Stride, JA
Lisichkin, YV
Khmenko, NA
Keywords: Phonons
Isotopes
Metallic Glasses
Neutrons
Inelastic Scattering
Spectrometers
Issue Date: 15-Oct-2007
Publisher: Elsevier
Citation: Syrykh, G. F., Zemlyanov, M. G., Ivanov, A. S., Stride, J. A., Lisichkin, Y. V., & Khmenko, N. A. (2007). Observation of the collective vibrational modes in Ni42Nb58 metallic glass. Journal of Non-Crystalline Solids, 353(32-40), 3188-3191.
Abstract: The dynamic structure factors, S(Q, E), for Ni42Nb58 metallic glass have been measured using neutron inelastic scattering on the IN4 spectrometer (ILL, Grenoble, France), over a range of momentum transfer, 0.7 < hQ/angstrom(-1) < 8, and energy transfer, 2 < E/meV < 50. Three samples with the same chemical composition and different Ni isotope content were investigated. The constant-E and constant-Q cuts through the S(Q, E) functions have been obtained. They reveal the E-and Q-dependencies due to the existence of the collective vibrational excitations in Ni42Nb58 glass. At the same time the difference of Ni and Nb atoms dynamics was observed by isotope contrast in the scattered spectra. © 2007, Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.jnoncrysol.2007.05.156
http://apo.ansto.gov.au/dspace/handle/10238/1082
ISSN: 0022-3093
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