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- Title
Laser-induced melting of two-dimensional dusty plasma system in RF discharge.
- Authors
Vasilieva, E. V.; Petrov, O. F.; Vasiliev, M. M.
- Abstract
We present a detailed analysis of experimental study, which shows clear evidence of a two-stage melting process of a quasi-two-dimensional dusty plasma system in a high-frequency gas discharge. We accurately calculated global parameters of the orientational and translational order, as well as their susceptibilities to determine two critical points, related to "solid-to-hexatic" and "hexatic-to-liquid" phase transitions. The nature of the emerging defects and changes in their mutual concentration, in addition to the estimate of core energy of free dislocations also counts in favor of the formation of an intermediate hexatic phase. These results are fully consistent with the Berezinsky–Kosterlitz–Thouless theory.
- Subjects
MELTING; DUSTY plasmas; PHASE transitions; ELECTRIC discharges; KOSTERLITZ-Thouless transitions
- Publication
Scientific Reports, 2021, Vol 11, Issue 1, p1
- ISSN
2045-2322
- Publication type
Academic Journal
- DOI
10.1038/s41598-020-80082-x