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From sum rules to RPA: 3. Optical dipole response in metal clusters
Author(s) -
Reinhard P.G.,
Genzken O.,
Brack M.
Publication year - 1996
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.2065080704
Subject(s) - jellium , random phase approximation , physics , discrete dipole approximation , plasmon , flexibility (engineering) , radius , effective radius , dipole , angular momentum , ground state , quantum mechanics , electron , statistical physics , mathematics , computer science , statistics , computer security , galaxy
The properties of plasmon resonances in metal clusters are computed within the random phase approximation (RPA), starting from the Kohn‐Sham ground state within the jellium model. The paper aims at a systematic survey of the general trends with varying parameters such as electron number, angular momentum, Wigner‐Seitz radius etc. To this end we exploit the flexibility of a particular RPA scheme which allows to switch easily between different levels of approximation.