Abstract
The surface plasmon excitation on the Ag(110) surface along two high symmetry directions, [1 1 0] and [001], has been investigated using angle-resolved electron-energy loss spectroscopy. While the surface plasmon energies at q |≈0 are found to be equal and to agree with reported values for Ag(100) and Ag(111), the dispersions are anisotropic and different from those reported for the other crystal faces. The dispersions can be fitted with second order polynomials in powers of the parallel momentum ( q |). The anisotropy in the dispersions appears in the quadratic term. This may indicate the influence of bulk contributions to the anisotropic surface plasmon dispersion. In contrast to the energy of the plasmon, the linewidth is isotropic, dependent only on the magnitude of q |. The qualitatively different dispersion and the linewidth for Ag(110) compared to those reported for Ag(100) by Rocca et al. [Phys. Rev. Lett. 64 (1990) 2398] indicate a strong face dependence of the surface plasmon of silver.
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.
