Source:http://linkedlifedata.com/resource/pubmed/id/11415292
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
24
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| pubmed:dateCreated |
2001-6-20
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| pubmed:abstractText |
Recent experiments show that supercooled liquids around the glass transition temperature are "dynamically heterogeneous" [H. Sillescu, J. Non-Cryst. Solids 243, 81 (1999)]. Such heterogeneity is expected from the random first order transition theory of the glass transition. Using a microscopic approach based on this theory, we derive a relation between the departure from Debye relaxation as characterized by the beta value of a stretched exponential response function, phi(t) = e(-(t/tau(KWW))beta), and the fragility of the liquid. The beta value is also predicted to depend on temperature and to vanish as the ideal glass transition is approached at the Kauzmann temperature.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jun
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| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:day |
11
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| pubmed:volume |
86
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
5526-9
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| pubmed:dateRevised |
2003-10-31
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| pubmed:year |
2001
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| pubmed:articleTitle |
Microscopic theory of heterogeneity and nonexponential relaxations in supercooled liquids.
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| pubmed:affiliation |
Department of Physics and Chemistry, University of Illinois, Urbana, Illinois 61801, USA.
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| pubmed:publicationType |
Journal Article
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