Liquid elasticity length, universal dynamic crossovers and glass transition

Details Liquid elasticity length, universal dynamic crossovers and glass transition Liquid elasticity length, universal dynamic crossovers and glass transition

2007-08-08

arxiv.org/abs/0708.1140v2

J. Phys.: Condens. Matter 20, 075103 (2008)

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

10.1088/0953-8984/20/7/075103

We discuss two main universal dynamic crossovers in a liquid that correspond to relaxation times of 1 ps and 10^{-7}--10^{-6} s. We introduce the concept of liquid elasticity length $d_{\rm el}$. At room temperature, $d_{\rm el}$ is several \AA in water and increases to 0.01 mm in honey and 1 mm in tar. We discuss that on temperature decrease, $d_{\rm el}=d_{\rm m}$ and $d_{\rm el}=L$ correspond to the two dynamic crossovers, where $d_{\rm m}$ is the medium-range order and L is system size. The second crossover defines all kinetic aspects of the glass transition whereas ``thermodynamic'' glass transition is realized in the limit of infinite system size only. One prediction of this picture is the increase of viscosity with the size of macroscopic system, which we verify by measuring the viscosity of honey.

Affiliated with

Also associated with

No associations

Rating

Liquid elasticity length, universal dynamic crossovers and glass transition does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Liquid elasticity length, universal dynamic crossovers and glass transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid elasticity length, universal dynamic crossovers and glass transition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-215935