Johari-Goldstein heterogeneous dynamics in a model polymer
Soft Condensed Matter
2021-02-26 v1 Disordered Systems and Neural Networks
Abstract
The heterogeneous character of the Johari-Goldstein (JG) relaxation is evidenced by molecular-dynamics simulation of a model polymer system. A double-peaked evolution of dynamic heterogeneity (DH), with maxima located at JG and structural relaxation time scales, is observed and mechanistically explained. {The short-time single-particle displacement during JG relaxation weakly correlates with the long-time one observed during structural relaxation}.
Keywords
Cite
@article{arxiv.2102.12527,
title = {Johari-Goldstein heterogeneous dynamics in a model polymer},
author = {Francesco Puosi and Antonio Tripodo and Marco Malvaldi and Dino Leporini},
journal= {arXiv preprint arXiv:2102.12527},
year = {2021}
}