Amorphous Order & Non-linear Susceptibilities in Glassy Materials
Disordered Systems and Neural Networks
2021-01-12 v1 Soft Condensed Matter
Statistical Mechanics
Abstract
We review 15 years of theoretical and experimental work on the non-linear response of glassy systems. We argue that an anomalous growth of the peak value of non-linear susceptibilities is a signature of growing "amorphous order" in the system, with spin-glasses as a case in point. Experimental results on supercooled liquids are fully compatible with the RFOT prediction of compact "glassites" of increasing volume as temperature is decreased, or as the system ages. We clarify why such a behaviour is hard to explain within purely kinetic theories of glass formation, despite recent claims to the contrary.
Cite
@article{arxiv.2101.03836,
title = {Amorphous Order & Non-linear Susceptibilities in Glassy Materials},
author = {Giulio Biroli and Jean-Philippe Bouchaud and Francois Ladieu},
journal= {arXiv preprint arXiv:2101.03836},
year = {2021}
}
Comments
Contribution to be submitted to Dave Thirumalai Festschrift in The Journal of Physical Chemistry