Strain pattern in supercooled liquids

Illing, Bernd; Fritschi, Sebastian; Hajnal, David; Klix, Christian L.; Keim, Peter; Fuchs, Matthias

Strain pattern in supercooled liquids

Dateien

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Datum

2016

Autor:innen

Hajnal, David

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. 2016, 117(20), 208002. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.117.208002

Zusammenfassung

Investigations of strain correlations at the glass transition reveal unexpected phenomena. The shear strain fluctuations show an Eshelby-strain pattern [∼cos(4θ)/r²], characteristic of elastic response, even in liquids, at long times. We address this using a mode-coupling theory for the strain fluctuations in supercooled liquids and data from both video microscopy of a two-dimensional colloidal glass former and simulations of Brownian hard disks. We show that the long-ranged and long-lived strain signatures follow a scaling law valid close to the glass transition. For large enough viscosities, the Eshelby-strain pattern is visible even on time scales longer than the structural relaxation time τ and after the shear modulus has relaxed to zero.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

ILLING, Bernd, Sebastian FRITSCHI, David HAJNAL, Christian L. KLIX, Peter KEIM, Matthias FUCHS, 2016. Strain pattern in supercooled liquids. In: Physical Review Letters. 2016, 117(20), 208002. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.117.208002

BibTex

@article{Illing2016-06-10T15:04:24ZStrai-37227,
  year={2016},
  doi={10.1103/PhysRevLett.117.208002},
  title={Strain pattern in supercooled liquids},
  number={20},
  volume={117},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Illing, Bernd and Fritschi, Sebastian and Hajnal, David and Klix, Christian L. and Keim, Peter and Fuchs, Matthias},
  note={Article Number: 208002}
}

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