Direct identification of the glass transition: Growing length scale and the onset of plasticity

E. Aharonov*, E. Bouchbinder, H. G.E. Hentschel, V. Ilyin, N. Makedonska, I. Procaccia, N. Schupper

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Understanding the mechanical properties of glasses remains elusive since the glass transition itself is not fully understood, even in well-studied examples of glass formers in two dimensions. In this context we demonstrate here: i) a direct evidence for a diverging length scale at the glass transition ii) an identification of the glass transition with the disappearance of fluid-like regions and iii) the appearance in the glass state of fluid-like regions when mechanical strain is applied. These fluid-like regions are associated with the onset of plasticity in the amorphous solid. The relaxation times which diverge upon the approach to the glass transition are related quantitatively to the diverging length scale.

Original languageAmerican English
Article number56002
JournalLettere Al Nuovo Cimento
Volume77
Issue number5
DOIs
StatePublished - 1 Mar 2007
Externally publishedYes

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