Optical Detection of Surface States on Cleaved (111) Surfaces of Ge
Year: 1968
Type: article
Abstract: Optical absorption of a cleaved surface of germanium shows a band at energies smaller than the gap, that is removed when the surface is oxidized. The band is assumed to be due to optical excitation of a surface state practically coincident with the top of the valence band to a set of states 0.16 eV below the bottom of the conduction band.
Source: Physical Review Letters
Authors: G. Chiarotti, G. Del Signore, S. Nannarone
Institution: National Research Council
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1991190845