Abstract

From the experimental data on inelastic neutron scattering the frequency spectrum of lithium atomic vibrations is extracted at the temperature of 22, 227, 397 and 557°C. The frequency spectrum for lithium-hydrogen melt (98 at.% Li7, 2 at.% H) has been obtained at 557°C. Based on the frequency spectrum, the temperature dependencies of the mean-square of the lithium atoms displacements in time, the mean-square amplitude of atomic vibrations, velocity autocorrelation function of atoms are calculated. A generalized frequency spectrum of hydrogen atomic vibrations in lithium-hydrogen melt is obtained.

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