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Study of the Electronic Polarizability of Metal Clusters
Author(s) -
UtrerasDíaz C. A.,
García E. Martín,
Troncoso M. A. Rojas
Publication year - 1995
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221900211
Subject(s) - polarizability , jellium , cluster (spacecraft) , atomic physics , electronic density , ionization , work function , electric field , ionization energy , work (physics) , constant (computer programming) , ion , physics , chemistry , density functional theory , quantum mechanics , electron , electrode , molecule , computer science , programming language
A study of alkaline metal clusters, both neutral and ionized is presented as a function of the number of atoms in the cluster N in the Thomas‐Fermi‐Dirac‐Weizsäcker approximation for the spherical jellium model. Numerical solutions are found for the electronic density using the program COLSYS and the surface energy and the ionization energy of the clusters are studied as functions of N for N up to 10000 atoms. To calculate the polarizability of the cluster, a one‐parameter trial density is proposed, based upon the numerical solution for neutral clusters, to approximate the distorted electronic density under a constant electric field. An alternative approach is also considered and described, but it is not implemented numerically in this work.