57 citations · 157 across the 8 of their papers we have counts for
8 papers
Fast dynamics perspective on the breakdown of the Stokes-Einstein law in fragile glassformers
F. Puosi, A. Pasturel, N. Jakse +1
The breakdown of the Stokes-Einstein (SE) law in fragile glassformers is examined by Molecular-Dynamics simulations of atomic liquids and polymers and consideration of the experime…
Anisotropy of the monomer random walk in a polymer melt: local-order and connectivity effects
S. Bernini, D. Leporini
The random walk of a bonded monomer in a polymer melt is anisotropic due to local order and bond connectivity. We investigate both effects by molecular-dynamics simulations on melt…
Short-Time Elasticity of Polymer Melts: Tobolsky Conjecture and Heterogeneous Local Stiffness
S. Bernini, D. Leporini
An extended Molecular-Dynamics study of the short-time "glassy" elasticity exhibited by a polymer melt of linear fully-flexible chains above the glass transition is presented. The…
Weak links between fast mobility and local structure in molecular and atomic liquids
S. Bernini, F. Puosi, D. Leporini
We investigate by Molecular-Dynamics simulations the fast mobility - the rattling amplitude of the particles temporarily trapped by the cage of the neighbors - in mildly supercoole…
Cage rattling does not correlate with the local geometry in molecular liquids
S. Bernini, F. Puosi, D. Leporini
Molecular-dynamics simulations of a liquid of short linear molecules have been performed to investigate the correlation between the particle dynamics in the cage of the neighbors a…
The kinetic fragility of liquids as manifestation of the elastic softening
F. Puosi, D. Leporini
We show that the fragility , the steepness of the viscosity and relaxation time close to the vitrification, increases with the degree of elastic softening, i.e. the decrease of…