Complex materials are composed of basic units which invariably interact with anharmonic
potentials. It is well known that the dynamics of systems with anharmonic interaction are …

This article gives an overview of excess-entropy scaling, the 1977 discovery by Rosenfeld
that entropy determines properties of liquids like viscosity, diffusion constant, and heat …

An intriguing problem in condensed matter physics is understanding the glass transition, in
particular the dynamics in the equilibrium liquid close to vitrification. Recent advances have …

This paper is the fourth in a series devoted to identifying and explaining the properties of
strongly correlating liquids, ie, liquids where virial and potential energy correlate better than …

Recent developments show that many liquids and solids have an approximate “hidden”
scale invariance that implies the existence of lines in the thermodynamic phase diagram, so …

Upon decreasing temperature or increasing pressure, a noncrystallizing liquid will vitrify; that
is, the structural relaxation time, τ α, becomes so long that the system cannot attain an …

We study the effect of variations in the soft/hard segment ratio, achieved through
stoichiometry changes, in elastomeric polyurea. These variations have a marked effect on …

Dielectric spectra of the polyalcohols sorbitol and xylitol were measured under isobaric
pressures up to 1.8 GPa. At elevated pressure, the separation between the α and β …

The dynamics of molecular liquids and polymers exhibit various “transitions”, associated
with characteristic changes in properties. With decreasing temperature or increasing …

Broadband dielectric measurements on the pharmaceutical indomethacin (IMC) were
performed at ambient and elevated pressure. Data on molecular dynamics collected at …