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  Double photoemission from Ag and Pd surfaces: Energy relations

Schumann, F. O., Aliaev, Y., Kostanovskiy, I., & Kirschner, J. (2020). Double photoemission from Ag and Pd surfaces: Energy relations. Physical Review B, 101(11): 115104. doi:10.1103/PhysRevB.101.115104.

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PhysRevB.101.115104.pdf (Publisher version), 2MB
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https://doi.org/10.1103/PhysRevB.101.115104 (Publisher version)
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 Creators:
Schumann, F. O.1, Author              
Aliaev, Y.1, Author
Kostanovskiy, Ilya2, Author              
Kirschner, J.1, Author              
Affiliations:
1Max Planck Institute of Microstructure Physics, Max Planck Society, ou_2415691              
2Nano-Systems from Ions, Spins and Electrons, Max Planck Institute of Microstructure Physics, Max Planck Society, ou_3287476              

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 Abstract: We have investigated the electron pair emission due to single-photon absorption from Ag(100) and Pd(100) surfaces. We are interested in the energy spectra of pairs in particular near the energy cutoff. The sum energy spectra of Ag display a distinctive photon energy dependence. We also observe some fine structure. Near the high-energy cutoff the coincidence rate is too low to determine the energy position of the cutoff. Nevertheless we observe a finite signal if two 5sp electrons near the Fermi level are emitted. For Pd(100) we find sum energy spectra without fine structure and the cutoff region is approached linearly. Within the experimental accuracy the minimum energy to liberate two electrons is twice the work function.

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 Dates: 2020-03-03
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: P13883
DOI: 10.1103/PhysRevB.101.115104
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 101 (11) Sequence Number: 115104 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008