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Acquisition of photoelectron diffraction patterns with a two-dimensional wide-angle electron analyzer

Greif, Michael; Castiglioni, Luca; Becker-Koch, David; Osterwalder, Jürg; Hengsberger, Matthias (2014). Acquisition of photoelectron diffraction patterns with a two-dimensional wide-angle electron analyzer. Journal of Electron Spectroscopy and Related Phenomena, 197:30-36.

Abstract

An efficient and fast way to measure photoelectron diffraction data over the full 2π angular range with high data point density is presented, taking advantage of the massive parallel detection capabilities of modern two-dimensional electron detectors. We introduce generic routines for data binning and for the mapping of the detector signal onto emission angles. X-ray photoelectron diffraction patterns taken from Bi(1 1 1) with the new detection scheme are compared to data sets taken with a conventional hemispherical analyzer equipped with a channeltron detector. As a result, the data acquisition time can be reduced by roughly a factor of ten while obtaining comparable if not superior data quality. The sampling technique is extended to UV-excited angle-resolved photoelectron spectroscopy as illustrated by a mapping of the Fermi surface of Cu(1 1 1).

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Electronic, Optical and Magnetic Materials
Physical Sciences > Radiation
Physical Sciences > Atomic and Molecular Physics, and Optics
Physical Sciences > Condensed Matter Physics
Physical Sciences > Spectroscopy
Physical Sciences > Physical and Theoretical Chemistry
Language:English
Date:2014
Deposited On:23 Jan 2015 14:10
Last Modified:11 Feb 2025 02:42
Publisher:Elsevier
ISSN:0368-2048
OA Status:Green
Publisher DOI:https://doi.org/10.1016/j.elspec.2014.08.007

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