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Non-dipole effects in photoelectron-monitored X-ray standing wave experiments: characterisation and calibration
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UNSPECIFIED (2001) Non-dipole effects in photoelectron-monitored X-ray standing wave experiments: characterisation and calibration. Surface Science, 494 (3). pp. 166-182. ISSN 0039-6028
Full text not available from this repository.Abstract
The results are reported of a series of experiments designed to characterise and calibrate the role of non-dipolar (notably electric quadrupole-dipole interference) effects in the angular distribution of photoelectron emission on structural studies of surfaces using normal incidence X-ray standing wavefield absorption. The values of the resulting backward/forward asymmetry parameter (relative to the photon propagation direction) have been measured for Is emission at photon energies around 3 keV for first and second row elements from C to Cl. and are compared with recent theoretical determinations. The influence of additional non-dipole interference terms in the coherent X-ray standing wave has also been determined for the case of Al Ls emission and found to be weak. typically introducing systematic errors in atomic positions of only around 0.02-0.04 Angstrom. (C) 2001 Elsevier Science B.V. All rights reserved.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
| Journal or Publication Title: | Surface Science |
| Publisher: | ELSEVIER SCIENCE BV |
| ISSN: | 0039-6028 |
| Date: | 1 December 2001 |
| Volume: | 494 |
| Number: | 3 |
| Number of Pages: | 17 |
| Page Range: | pp. 166-182 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/11465 |
Data sourced from Thomson Reuters' Web of Knowledge
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