http://www.cnr.it/ontology/cnr/individuo/prodotto/ID894
What can we learn by squeezing a liquid? (Articolo in rivista)
- Type
- Label
- What can we learn by squeezing a liquid? (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Casalini, R; Capaccioli, S; Roland, CM (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- USN, Res Lab, Washington, DC 20375 USA; George Mason Univ, Fairfax, VA 22030 USA; Univ Pisa, Dipartimento Fis, Pisa, Italy; Univ Pisa, INFM, Pisa, Italy; CNR, INFM, CRS, SOFT, Rome, Italy (literal)
- Titolo
- What can we learn by squeezing a liquid? (literal)
- Abstract
- Relaxation times tau(T,v) for different temperatures, T, and specific volumes, v, collapse to a master curve vs Tu(gamma), with gamma a material constant. The isochoric fragility, m(V), is also a material constant, inversely correlated with gamma. From these experimental facts, we obtain a three-parameter function that accurately fits tau(T,v) data for several glass-formers over the supercooled regime, without any divergence of tau below T-g. Although the values of the three parameters depend on the material, only gamma significantly varies; thus, by normalizing material-specific quantities related to gamma, a universal power law for the dynamics is obtained. (literal)
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