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 ϕ ≈ 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 language | English (US) |
|---|---|
| Pages (from-to) | 172-179 |
| Number of pages | 8 |
| Journal | Contributions to Plasma Physics |
| Volume | 55 |
| Issue number | 2-3 |
| DOIs | |
| State | Published - Feb 1 2015 |
| Externally published | Yes |
Keywords
- Colloids
- Yukawa model
ASJC Scopus subject areas
- Condensed Matter Physics