Surface barrier resonances on a simple metal

The existence of a surface resonance below the vacuum level of a simple metal surface is demonstrated. Theoretical modeling of new scanning tunneling spectroscopy (STS) data from Al(111) shows that the mechanism for formation of this resonance is scattering from the bulk lattice. Correlation between...

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Bibliographic Details
Published in:Physical review letters 1993-02, Vol.70 (6), p.849-852
Main Authors: YANG, S, BARTYNSKI, R. A, KOCHANSKI, G. P, PAPADIA, S, FONDEN, T, PERSSON, M
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states
Exact sciences and technology
Metals. Metallurgy
Physics
Theories and models of many electron systems
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Summary:The existence of a surface resonance below the vacuum level of a simple metal surface is demonstrated. Theoretical modeling of new scanning tunneling spectroscopy (STS) data from Al(111) shows that the mechanism for formation of this resonance is scattering from the bulk lattice. Correlation between the STS feature and structure seen in inverse photoemission (IPE) spectra from Al(111) suggests that the IPE feature is also attributed to this surface resonance, rather than a previously-proposed matrix element effect.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.70.849