Angle of incidence dependence of electron beam induced crystal current from 
Ag(100) and Ag(111) surfaces

Tjeng, L. H.; Barstra, R. W.; Sawatzky, G. A.

doi:10.1016/0039-6028(89)90770-X

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Angle of incidence dependence of electron beam induced crystal current from Ag(100) and Ag(111) surfaces

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Citation

Tjeng, L. H., Barstra, R. W., & Sawatzky, G. A. (1989). Angle of incidence dependence of electron beam induced crystal current from Ag(100) and Ag(111) surfaces. Surface Science, 211(1-3), 187-197. doi:10.1016/0039-6028(89)90770-X.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-1EC6-A

Abstract

We have examined the variation of medium energy ( ∼ 3 keV) electron beam induced crystal current from Ag(100) and Ag(111) surfaces, as a function of the polar and azimuthal angle of incidence. The results are interpreted in terms of a dynamical two-beam model, based on the variation of electron absorption as a function of the diffraction conditions. This model allows the determination of complex Fourier components of the one-electron potential in Ag, with which anisotropies in both elastic and inelastic scattering processes can be described. These anisotropies could be of importance in the interpretation of angle dependent X-ray photoelectron spectroscopy, angle dependent Auger electron spectroscopy, angle dependent inverse photoemission and various backscattered electron diffraction experiments.