Flexible confinement leads to multiple relaxation regimes in glassy colloidal liquids

Ian Williams, Erdal C. Oguz, Paul Bartlett, Hartmut Löwen, C. Patrick Royall

Research output: Contribution to journalArticle (Academic Journal)peer-review

8 Citations (Scopus)

Abstract

Understanding relaxation of supercooled fluids is a major challenge and confining such systems can lead to bewildering behaviour. Here, we exploit an optically confined colloidal model system in which we use reduced pressure as a control parameter. The dynamics of the system are “Arrhenius” at low and moderate pressure, but at higher pressures relaxation is faster than expected. We associate this faster relaxation with a decrease in density adjacent to the confining boundary due to local ordering in the system enabled by the flexible wall.
Original languageEnglish
Pages (from-to)024505
Number of pages1
JournalJournal of Chemical Physics
Volume142
Issue number2
DOIs
Publication statusPublished - 2015

Bibliographical note

[it 1 citations]

Keywords

  • Colloidal systems, Crystal structure, Crystal voids, Glass transitions, Relaxation times

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