| Issue |
EPL
Volume 111, Number 4, August 2015
|
|
|---|---|---|
| Article Number | 45002 | |
| Number of page(s) | 6 | |
| Section | Physics of Gases, Plasmas and Electric Discharges | |
| DOI | https://doi.org/10.1209/0295-5075/111/45002 | |
| Published online | 08 September 2015 | |
Solid-hexatic-liquid transition in a two-dimensional system of charged dust particles
1 Joint Institute for High Temperatures of the Russian Academy of Sciences (JIHT RAS) - Moscow, Russia
2 Moscow Institute of Physics and Technology - Dolgoprudny, Russia
Received: 8 July 2015
Accepted: 18 August 2015
Two-stage melting is observed experimentally in a confined monolayer of dust particles in plasma. The pair correlation and bond-angular correlation functions, the number of topological defects, and the pair potentials are measured and analyzed. The bond-orientational correlation functions show a clear solid-to-hexatic-to-fluid transition, in perfect agreement with the Berezinskii-Kosterlitz-Thouless transition theory.
PACS: 52.27.Lw – Dusty or complex plasmas; plasma crystals / 64.60.Cn – Order-disorder transformations
© EPLA, 2015
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