Electron dynamics in Na9+ and Pt3 clusters from time-dependent Hartree-Fock theory
Max-Planck Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany
Corresponding author: a email@example.com
Revised: 31 May 2002
Published online: 24 September 2002
We present a method for the numerical investigation of the electron dynamics in small metallic clusters in intense laser fields. We obtain information about collective excitations and relaxation processes in the Na and Pt3 clusters analyzing the power spectrum of the dipole moment within a mean-field approach. The power spectrum is computed for various laser pulse parameters as well as for the limit of an infinitely short laser pulse. Due to the basis set expansion of the wave function our method is capable to follow the dynamics not only of the whole electron cloud, but of any particular molecular orbital.
PACS: 78.47.+p – Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter / 36.40.Cg – Electronic and magnetic properties of clusters / 36.40.Gk – Plasma and collective effects in clusters / 71.15.Ap – Basis sets (plane-wave, APS, LCAO, etc.) and related methodology (scattering methods, ASA, linearized methods)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002