Abstract
The instantaneous normal mode (INM) spectrum for a model soft-sphere system is calculated via molecular-dynamics computer simulation for a variety of temperatures both above and below the observed glass transition temperature. In such spectra, the modes can be classified as either real or imaginary frequency. Results indicate that the liquid \ensuremath{\rightarrow} glass transition is associated with the temperature below which all INM's become localized and that the crossover from unstable to stable INM's occurs at a finite imaginary frequency and not at zero as is generally assumed. Two possible mechanisms for the glass transition are discussed that are consistent with the present data.
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.
