Abstract
We have investigated vibrational properties of the Si(001)/Sb(2×1) surface by applying the adiabatic bond-charge model using the recently determined relaxed atomic geometry. We compare the phonon spectrum of this surface in detail with that of the Si(001)(2×1) surface presented in a recent bond-charge model study. We observe that the surface acoustic phonon modes are mainly localized on the adsorbate layer atoms due to the large mass difference between Sb and Si atoms. Adsorption of Sb is shown to result in two new peaks in the phonon density of states; one below the bulk continuum, and the other near the boundary between bulk acoustic and optical states.
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.
