Werner, W., Salvat-Pujol, F., Smekal, W., Khalid, R., Aumayr, F., Störi, H., Ruocco, A., & Stefani, G. (2011). Contribution of surface plasmon decay to secondary electron emission from an Al surface. Applied Physics Letters, 99(18), 184102. https://doi.org/10.1063/1.3658455
E134-01 - Forschungsbereich Applied and Computational Physics E134-03 - Forschungsbereich Atomic and Plasma Physics
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Zeitschrift:
Applied Physics Letters
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ISSN:
0003-6951
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Datum (veröffentlicht):
2-Nov-2011
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Umfang:
3
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Verlag:
AIP PUBLISHING
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Peer Reviewed:
Ja
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Keywords:
Physics and Astronomy (miscellaneous)
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Abstract:
Spectra of secondary electrons (SE) emitted from a polycrystalline Al surface have been measured
in coincidence with 500 eV-electrons for energy losses between 10 and 155 eV. The spectra for a
given energy loss are qualitatively similar, consisting of surface and volume plasmon decay and a
contribution attributable to direct electron-electron scattering. The similarity of the contribution of
surface and volume plasmon decay in the SE spectra proves directly that electron multiple
scattering is governed by a Markov-type process. The average value of the surface plasmon decay
contribution to the SE spectrum amounts to !25%.
