1989/07/17 by Constantine Yannouleas, C. Yannouleas, R. A. Broglia +4 · 3 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Spectroscopy and Quantum Chemical Studies #cond-mat.mes-hall #cond-mat.mtrl-sci #nucl-th #physics.atm-clus
paper · pdf · doi:10.1103/physrevlett.63.255
published as Phys. Rev. Lett. 63, 255 (1989) · This early (1989) jellium matrix-RPA/LDA (TDLDA in Fock space) study: 1) introduced the physics of spectral Landau-damping fragmentation for metal clusters; 2) explained the double line of the neutral Na_20; 3) predicted a 25% strength at high energies (recently seen experimentally); 4) predicted reduced fragmentation for cationic clusters (later seen experimentally);
openalex publication_date 1989/07/17 · arxiv created 2009/10/23 · arxiv updated 2010/02/26 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The line shape of the plasma resonance in both neutral and charged small sodium clusters is calculated. The overall properties of the multipeak structure observed in the photoabsorption cross section of spherical Na8 and Na20 neutral clusters can be understood in terms of Landau damping. Quantal configurations are shown to play an important role. In the case of charged Na9+ and Na21+ clusters a single peak is predicted that carries most of the oscillator strength.