Abstract
In the compressed incommensurate phase at low temperatures, the molecular axes of CO on graphite are ordered with respect to each other, forming a pinwheel structure. A sharp heat capacity peak is found upon warming through the (orientational) order-disorder transition of this pin wheel phase. Critical analysis of the peak indicates that this transition is continuous and belongs to the two-dimensional Ising universality class, in agreement with theoretical expectations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3822-3825 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 71 |
| Issue number | 23 |
| DOIs | |
| State | Published - 1993 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy