Naslov
Dynamical Response and Surface Excitations in Thin Films

Autori
Marušić, Leonardo ; Šunjić, Marijan

Izvornik
Physica Scripta 63 (2001); 336-341

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
dynamical response; excitations; dielectric function

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA