Water dynamics in a lithium chloride aqueous solution probed by Brillouin neutron and x-ray scattering (Articolo in rivista)

Type
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  • Water dynamics in a lithium chloride aqueous solution probed by Brillouin neutron and x-ray scattering (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0953-8984/24/6/064102 (literal)
Alternative label
  • E Mamontov (1); A De Francesco (2); F Formisano (2); A Laloni (2); L Sani (3); B.M.Leu (4); A. H. Said (4); A. I. Kolesnikov (1) (2012)
    Water dynamics in a lithium chloride aqueous solution probed by Brillouin neutron and x-ray scattering
    in Journal of physics. Condensed matter (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • E Mamontov (1); A De Francesco (2); F Formisano (2); A Laloni (2); L Sani (3); B.M.Leu (4); A. H. Said (4); A. I. Kolesnikov (1) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 24 (literal)
Rivista
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  • 9 (literal)
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  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 2 CNR-IOM, Operative Group in Grenoble c/o Institut Laue-Langevin, 6 rue Jules Horowitz, F-38042 Grenoble Cedex 9, France 3 Dipartimento di Fisica, Università degli Studi di Perugia, Via Pascoli I-06123, Perugia, Italy 4 Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA (literal)
Titolo
  • Water dynamics in a lithium chloride aqueous solution probed by Brillouin neutron and x-ray scattering (literal)
Abstract
  • We studied the collective excitations in an aqueous solution of lithium chloride over the temperature range of 270-205 K using neutron and x-ray Brillouin scattering. Both neutron and x-ray experiments revealed the presence of low- and high-frequency excitations, similar to the low- and high-frequency excitations in pure water. These two excitations were detectable through the entire temperature range of the experiment, at all probed values of the scattering momentum transfer (0.2 °A -1 < Q < 1.8 °A -1). A wider temperature range was investigated using elastic intensity neutron and x-ray scans. Clear evidence of the crossover in the dynamics of the water molecules in the solution was observed in the single-particle relaxational dynamics on the ?eV (nanosecond) time scale, but not in the collective dynamics on the meV (picosecond) time scale. (literal)
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