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Dynamical Response and Surface Excitations in Thin Films (CROSBI ID 88505)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Marušić, Leonardo ; Šunjić, Marijan Dynamical Response and Surface Excitations in Thin Films Physica Scripta, 63 (2001), 336-341-x

Podaci o odgovornosti

Marušić, Leonardo ; Šunjić, Marijan

engleski

Dynamical Response and Surface Excitations in Thin Films

The non-local dynamically screened Coulomb interaction propagator W(Q,z,z',omega) in the vicinity of thin metal film is calculated for points inside and outside of the film, taking both collective modes and single-particle excitations into account. This is achieved by calculating the non-local dielectric function epsilon_p(Q,z,z',omega) of the thin jellium film within the Random Phase Approximation (using Local Density Approximation wave-functions), from which we then derive W(Q,z,z',omega). The calculated dielectric function is also used to obtain excitation spectra, and specifically dispersion relations of the collective modes.

dynamical response; excitations; dielectric function

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Podaci o izdanju

63

2001.

336-341-x

objavljeno

Povezanost rada

Fizika