Liquid-glass re-entrant behavior in a charge-stabilized colloidal dispersion

G. F. Wang, S. K. Lai

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Using the static structure factor S(q) calculated in the rescaled mean spherical approximation and in conjunction with the idealized mode-coupling theory, we determine the loci of the liquid-glass transition phase boundary for a salt-free suspension of charged colloids prepared in different counterions concentrations. For the simplest deionised charge-stabilized colloidal liquid, our calculations demonstrate the possibility of observing, in restrictive regions of the phase diagram, the liquid ⇄ glass ⇄ liquid ⇄ glass re-entrant transition. The latter disappears at a lower concentration of counterions and, when this arises, only the glass ⇄ liquid ⇄ glass is observed. We study this counterion-concentration-dependent re-entrant phenomenon by analyzing the non-ergodic Debye-Waller factor, S(q) and their corresponding spatial counterparts.

Original languageEnglish
Pages (from-to)812-817
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume307-310
DOIs
StatePublished - Sep 2002

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