COLLECTIVE EXCITATIONS AND GENERALIZED TRANSPORT COEFFICIENTS
IN A MOLTEN METALLIC ALLOY LI4PB
Authors: T.Bryk, I.Mryglod (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitsky Str., 79011 Lviv, Ukraine)
Collective dynamics of a molten metallic alloy Li4Pb is studied using a combination of analytical multivariable approach of generalized collective modes and molecular dynamics simulations. Dispersion and damping of two branches of propagating collective excitations are analyzed in a wide range of wavenumbers. The features in collective dynamics connected with the large difference in species mass are discussed. Generalized k-dependent transport coefficients for Li4Pb are reported.
Key words: collective dynamics, binary liquid, collective
excitation, generalized transport coefficients
PACS: 05.20.Jj, 61.20.Ja, 61.20.Lc
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