Abstract
The electronic structure of a CU0.9Al0.1(100) single crystal has been studied with use of an angle-resolved photoemission technique. An intrinsic Tamm-type surface state is found to exist in the disordered alloy. The linewidth of the surface state is analyzed to deduce the disorder-induced smearing of energy levels. These and other experimental results are discussed in terms of the computed band structure of the alloy on the basis of coherent-potential approximation applied to a realistic muffin-tin Hamiltonian.
Keywords
muffin-tin Hamiltonian, Tamm-type surface state, Cu0.9Al0.1(100)
Subject Categories
Photoemission, Alloys
Disciplines
Physics
Publisher
American Physical Society
Publication Date
10-26-1981
Rights Information
Copyright 1981 American Physical Society.
Rights Holder
American Physical Society
Recommended Citation
Pessa, M.; Asonen, H.; Rao, R. S.; Prasad, R.; and Bansil, A., "Observation of a Tamm-Type state on Cu0.9Al0.1(100) surface: Disorder effects and bulk electronic structure of an alloy" (1981). Physics Faculty Publications. Paper 406.
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Notes
Originally published in Physical Review Letters v.47 (1981): 1223-1226. DOI: 10.1103/PhysRevLett.47.1223