Low-density crystals in charged colloids: Comparison with Yukawa theory

B I Rios De Anda, Antonia Statt, Francesco Turci, C P Royall

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

12 Citations (Scopus)
316 Downloads (Pure)

Abstract

Charged colloids can behave as Yukawa systems, with similar phase behaviour. Using particle-resolved studies, we consider a system with an unusually long Debye screening length which forms crystals at low colloid volume fraction {\phi} ~ 0.01. We quantitatively compare this system with the Yukawa model and find that its freezing point is compatible with the theoretical prediction but that the crystal polymorph is not always that expected. In particular we find body-centred cubic crystals where face-centred cubic crystals are expected.
Original languageEnglish
Pages (from-to)172-179
Number of pages8
JournalContributions to Plasma Physics
Volume55
Issue number2-3
Early online date23 Jan 2015
DOIs
Publication statusPublished - 26 Feb 2015

Bibliographical note

Date of Acceptance: 01/12/2014

Keywords

  • Colloids
  • Yukawa model

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