Two-stage melting in two dimensions: First-principles approach
- 1 April 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 51 (14) , 8789-8794
- https://doi.org/10.1103/physrevb.51.8789
Abstract
Melting of the two-dimensional (2D) electron solid and the hard-disk system is discussed in the framework of the theory based on the density-functional approach. The estimates, made for the instability points of the solid-end hexatic phases, show that the 2D electron solid melts through two separate transitions, whereas the hard-disk system melts through a single first-order transition, and the hexatic phase cannot exist in this system.Keywords
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