Abstract
Recent inverse photoemission experiments on the silver (100) surface indicate that the effective mass of Rydberg surface states in motion parallel to the surface, may be as high as m ∗ = 1.3m . In this paper we will show that the structure of the Rydberg surface states massively weights m ∗ to the free space value, both in a simple model argument and in a multiple scattering treatment of the problem. We conclude that the cause of the high effective mass cannot be ascribed to corrugations parallel to the surface. We suggest new high resolution experiments to confirm or resolve this discrepancy between theory and experiment.
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