Título:
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Surface collective oscillations of metal clusters and spheres: Random-phase-approximation sum-rules approach
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Autor/a:
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Serra, Llorenç; Garcias, Francisca; Barranco Gómez, Manuel; Navarro Faus, Jesús; Balbás Ruesgas, Luis Carlos; Mañanes, A.
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Otros autores:
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Universitat de Barcelona |
Abstract:
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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. |
Materia(s):
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-Estructura atòmica -Processos estocàstics -Estructura molecular -Atomic structure -Molecular structure -Stochastic processes |
Derechos:
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(c) The American Physical Society, 1989
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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The American Physical Society
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