Phys. Rev. Lett. 54, 1299 - 1301 (1985)Dynamic M-Shell Effects in the Ultraviolet Absorption Spectrum of Metallic Potassium |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
A. C. Tselis and A. W. Overhauser
Department of Physics, Purdue University, West Lafayette, Indiana 47907
Received 20 November 1984
The filled M shell of potassium, set into oscillation by the electric field of a photon, leads to interband transitions that explain a large absorption peak at 8 eV. Interference between this collective perturbation and the ordinary A ยท p coupling (between a photon and conduction electron) shows that the sign of the V110 pseudopotential is negative.
©1985 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v54/p1299
DOI: 10.1103/PhysRevLett.54.1299
PACS: 78.20.-e, 32.30.Jc, 32.80.-t, 78.65.Ez
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