Are defect models consistent with the entropy and specific heat of glass formers? | Zendy

Giulio Biroli | Zendy; JeanPhilippe Bouchaud | Zendy; Gilles Tarjus | Zendy

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Are defect models consistent with the entropy and specific heat of glass formers?

Author(s) -

Giulio Biroli,

JeanPhilippe Bouchaud,

Gilles Tarjus

Publication year - 2005

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.1955527

Subject(s) - thermodynamics , glass transition , specific heat , entropy (arrow of time) , configuration entropy , materials science , statistical physics , physics , polymer , composite material

We show that point-like defect model of glasses cannot explain thermodynamicproperties of glass-formers, as for example the excess specific heat close tothe glass transition, contrary to the claim of J.P. Garrahan, D. Chandler[Proc. Natl. Acad. Sci. 100, 9710 (2003)]. More general models and approachesin terms of extended defects are also discussed.Comment: 4 pages, version to appear in J. Chem. Phys with a Note Adde

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