Jump to main content
Jump to site search


Melting scenarios of two-dimensional Hertzian spheres with a single triangular lattice

Author affiliations

Abstract

We present a molecular dynamics simulation study of the phase diagram and melting scenarios of two-dimensional Hertzian spheres with exponent 7/2. We have found multiple re-entrant melting of a single crystal with a triangular lattice in a wide range of densities from 0.5 to 10.0. Depending on the position on the phase diagram, the triangular crystal has been shown to melt through both two-stage melting with a first-order hexatic–isotropic liquid transition and a continuous solid–hexatic transition as well as in accordance with the Berezinskii–Kosterlitz–Thouless–Halperin–Nelson–Young (BKTHNY) scenario (two continuous transitions with an intermediate hexatic phase). We studied the behavior of heat capacity and have shown that despite two-stage melting, the heat capacity has one peak which seems to correspond to a solid–hexatic transition.

Graphical abstract: Melting scenarios of two-dimensional Hertzian spheres with a single triangular lattice

Back to tab navigation

Article information


Submitted
15 Nov 2019
Accepted
08 Feb 2020
First published
26 Mar 2020

Soft Matter, 2020, Advance Article
Article type
Paper

Melting scenarios of two-dimensional Hertzian spheres with a single triangular lattice

E. N. Tsiok, E. A. Gaiduk, Yu. D. Fomin and V. N. Ryzhov, Soft Matter, 2020, Advance Article , DOI: 10.1039/C9SM02262G

Social activity

Search articles by author

Spotlight

Advertisements