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A comparative study of optic phonon-like excitations in liquid mixtures and molten salts

✍ Scribed by Taras Bryk; Ihor Mryglod

Publisher: Elsevier Science
Year: 2005
Tongue: English
Weight: 157 KB
Volume: 120
Category: Article
ISSN: 0167-7322
DOI: 10.1016/j.molliq.2004.07.041

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✦ Synopsis

We report a study of collective excitations in an equimolar Lennard-Jones liquid mixture KrAr and a molten salt NaCl within the parameter-free generalized collective modes (GCM) approach. It is shown that the high-frequency propagating modes in liquid KrAr and molten NaCl correspond to optic phonon-like excitations, caused by fast mass-concentration (charge in NaCl) fluctuations. Dispersion curves for optic collective excitations are discussed.

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