Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100424385> ?p ?o ?g. }
- W3100424385 abstract "Abstract Electron emission can be utilised to measure the work function of the surface. However, the number of significant digits in the values obtained through thermionic-, field- and photo-emission techniques is typically just two or three. Here, we show that the number can go up to five when angle-resolved photoemission spectroscopy (ARPES) is applied. This owes to the capability of ARPES to detect the slowest photoelectrons that are directed only along the surface normal. By using a laser-based source, we optimised our setup for the slow photoelectrons and resolved the slowest-end cutoff of Au(111) with the sharpness not deteriorated by the bandwidth of light nor by Fermi-Dirac distribution. The work function was leveled within ±0.4 meV at least from 30 to 90 K and the surface aging was discerned as a meV shift of the work function. Our study opens the investigations into the fifth significant digit of the work function." @default.
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- W3100424385 date "2020-09-11" @default.
- W3100424385 modified "2023-10-18" @default.
- W3100424385 title "Work function seen with sub-meV precision through laser photoemission" @default.
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- W3100424385 doi "https://doi.org/10.1038/s42005-020-00426-x" @default.
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