Abstract
A simple model of damping of excited electrons in crystals is investigated, and the consequent broadening of angular resolved photoemission spectra is discussed. For a photon energy of 11.7 eV the exit angle dependence of the peak width of photoelectrons emanating from the sp band of Cu(111) is estimated from lifetime and band structure data and compared with the authors previously published spectra. A predicted sharp linewidth enhancement and maximum for k/sub /// approximately=0.83 pi /a along Gamma M is seen experimentally by a more gradual rise saturating at k/sub /// approximately=0.75 pi /a. Finally, angular tuning is used to obtain electron inverse lifetimes in copper of 2.7+or-0.4 eV and 3.5+or-0.4 eV at energies of 16.6 and 20.7 eV above the Fermi level, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
