Abstract
The effect of topological local order on vibrational dynamics in simple one-component glasses is analyzed numerically. The vibrational density of states of a glass with icosahedral local order is found to be similar to that of the σ-phase, a Frank–Kasper crystal, which represents a counterpart periodic phase for this glass. Optic-like longitudinal vibrational modes and two incommensurate length scales having analogues in the σ-phase are observed in this glass. This pattern of vibrational dynamics is in contrast with that generally ascribed to simple one-component glasses: e.g. a Lennard–Jones (LJ) glass is characterized by a single length scale and supports only modes with acoustic behavior.
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.
