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Work‐function imaging of oriented copper grains by photoemission
Author(s) -
Renault O.,
Brochier R.,
Roule A.,
Haumesser P.H.,
Krömker B.,
Funnemann D.
Publication year - 2006
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.2214
Subject(s) - work function , crystallite , copper , work (physics) , microscope , x ray photoelectron spectroscopy , function (biology) , materials science , analytical chemistry (journal) , chemistry , optics , crystallography , physics , nuclear magnetic resonance , metallurgy , metal , thermodynamics , chromatography , evolutionary biology , biology
We measured the work function of micrograins at the surface of a polycrystalline copper sample using NanoESCA, a photoelectron microscope equipped with two analysers in series. This allowed us to obtain accurate spectroscopic information with energy‐filtered images showing lateral resolutions of 40 nm. Reconstructed microspectra directly show variations in the local work function of grains having different crystalline orientation. Copyright © 2006 John Wiley & Sons, Ltd.