Abstract
We have recently measured the surface phonon spectrum of the ordered binary alloy Cu 3Au(001). In addition to the Rayleigh wave, we observe a higher energy mode which may be interpreted as the “folded” Rayleigh mode or “optical” surface mode. Using a harmonic pair potentials fit to the inelastic neutron scattering data of Katano et al, 13 we find that the force constant between the first and second layer Cu atoms must be stiffened by 20% with respect to the bulk value in order to match the “folded” Rayleigh mode.
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 callMore From: Journal of Electron Spectroscopy and Related Phenomena
Disclaimer: 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.
