Phys. Rev. A 64, 063202 (2001) [5 pages]A measurement of the polarizability of sodium clusters |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
G. Tikhonov, V. Kasperovich, K. Wong, and V. V. Kresin
Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484
Received 4 May 2000; published 6 November 2001
The static electric dipole polarizabilities of sodium clusters Nan for a series of sizes in the range 7<~n<~93 were measured by electric field deflection of a supersonic cluster beam. Results for the smaller clusters are in overall good agreement with previous experiments. Polarizabilities of the larger clusters continue the downward trend with increasing size, but remain considerably above the bulk limit. There is a degree of correlation between the polarizability values and electronic shell structure. Furthermore, there is an indication that the polarizability is sensitive to the source conditions, possibly reflecting the influence of internal cluster temperature.
©2001 The American Physical Society
URL: http://link.aps.org/abstract/PRA/v64/e063202
DOI: 10.1103/PhysRevA.64.063202
PACS: 36.40.Cg, 73.22.-f
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