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    The role of localization in glasses and supercooled liquids

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    LairdB_JCP_1996(104)5199.pdf (192.5Kb)
    Issue Date
    1996-01-01
    Author
    Bembenek, Scott D.
    Laird, Brian Bostian
    Publisher
    American Institute of Physics
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Localized excitations (tunneling modes, soft harmonic vibrations) are believed to play a dominant role in the thermodynamics and transport properties of glasses at low temperature. Using instantaneous normal‐mode (INM) analysis, we explore the role that such localization plays in determining the behavior of such systems in the vicinity of the glass transition. Building on our previous study [Phys. Rev. Lett. 74, 936 (1995)] we present evidence that the glass transition in two simple model systems is associated with a transition temperature below which all un‐ stable INM’s become localized. This localization transition is a possible mechanism for the change in diffusion mechanism from continuous flow to localized hopping that is believed to occur in fragile glass formers at a temperature just above T g .
    Description
    This is the publisher's version, also available electronically from http://scitation.aip.org/content/aip/journal/jcp/104/13/10.1063/1.471147.
    URI
    http://hdl.handle.net/1808/16150
    DOI
    https://doi.org/10.1063/1.471147
    ISSN
    0021-9606
    Collections
    • Chemistry Scholarly Works [610]
    Citation
    Bembenek, Scott D.; Laird, Brian B. (1996). "The role of localization in glasses and supercooled liquids." The Journal of Chemical Physics, 104(13):5499-5208. http://dx.doi.org/10.1063/1.471147.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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