Dipole excitations of Ar substrate in contact with Na clusters

Abstract

e analyze the excitation of Ar substrate in contact with Na clusters using a previously developed hierarchical model for the description of the system constituted of a highly reactive metal cluster in contact with a rather inert substrate. Particular attention is paid to the dipole excitation of the Ar atoms and the energy stored therein. The Na clusters are considered at different charge states, anions, cations, and neutral clusters for the case of deposition and a highly ionized cluster embedded in a matrix. It is found that the dipole polarization of the Ar atoms stores the largest fraction of energy in the case of charged clusters. Some, although smaller, polarization is also observed for polar clusters, as Na${}_6$. The effect is predominantly induced by the electrostatic interaction.

7 pages, 8 figures

References in corpus (5)

• Dynamics of cluster deposition on Ar surface
• Hindered Coulomb explosion of embedded Na clusters -- stopping, shape dynamics and energy transport
• Structural properties and optical response of Na clusters in Ne, Ar, and Kr matrices
• Deposition dynamics of Na monomers and dimers on an Ar(001) substrate
• Shape dynamics during deposit of simple metal clusters on rare gas matrices