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Surface collective oscillations of metal clusters and spheres: Random-phase-approximation sum-rules approach
Serra, Llorenç; Garcias, Francisca; Barranco Gómez, Manuel; Navarro Faus, Jesús; Balbás Ruesgas, Luis Carlos; Mañanes, A.
Universitat de Barcelona
Using the once and thrice energy-weighted moments of the random-phase-approximation strength function, we have derived compact expressions for the average energy of surface collective oscillations of clusters and spheres of metal atoms. The L=0 volume mode has also been studied. We have carried out quantal and semiclassical calculations for Na and Ag systems in the spherical-jellium approximation. We present a rather thorough discussion of surface diffuseness and quantal size effects on the resonance energies.
2010-05-04
Estructura atòmica
Processos estocàstics
Estructura molecular
Atomic structure
Molecular structure
Stochastic processes
(c) The American Physical Society, 1989
Article
The American Physical Society
         

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