Phys. Rev. 176, 551–555 (1968)Simple Microscopic Theory of Surface PlasmonsReceived 27 June 1968; published in the issue dated December 1968 We give a simple microscopic description of the surface modes of a finite high-density electron liquid. The random-phase approximation is reduced to a second-order differential equation with a surface solution at the expected frequency. We discuss the excitation of the surface plasmons, and also describe the analogous modes of systems with a short-range interaction. © 1968 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRev.176.551
DOI:
10.1103/PhysRev.176.551
PACS:
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