321 citations · 1.8k across the 38 of their papers we have counts for
38 papers
Intermolecular distance and density scaling of dynamics in molecular liquids
D. Fragiadakis, C. M. Roland
A broad variety of liquids conform to density scaling: relaxation times expressed as a function of the ratio of temperature to density, the latter raised to a material constant γ.…
Comment on "Experimental Evidence for a State-Point-Dependent Density-Scaling Exponent of Liquid Dynamics"
T. C. Ransom, R. Casalini, D. Fragiadakis +2
Recently Sanz et al. [A. Sanz, T. Hecksher, H.W. Hansen, J.C. Dyre, K. Niss, and U.R. Pedersen, Phys. Rev. Lett. 122, 055501 (2019).] reported that the scaling exponent gamma for t…
Cooperativity of short-time dynamics revisited
D. Fragiadakis, C. M. Roland
Using molecular dynamics simulations we examine the system size dependence of the fast dynamics in two model glass forming liquids, one of them a Lennard-Jones mixture for which co…
Pressure densification of a simple liquid
R. Casalini, C. M. Roland
The magnitude of the high frequency, static dielectric permittivity is used to determine the density of tetramethyl tetraphenyl trisiloxane, a non-associated glass-forming liquid,…
Effect of density on the physical aging of pressure-densified polymethylmethacrylate
R. Casalini, C. M. Roland
The rate of physical aging of glassy polymethylmethacrylate (PMMA), followed from the change in the secondary relaxation with aging, is found to be independent of the density, the…
A test for the existence of isomorphs in glass-forming materials
D. Fragiadakis, C. M. Roland
We describe a method to determine whether a material has isomorphs in its thermodynamic phase diagram. Isomorphs are state points for which various properties are invariant in redu…