| Issue |
EPL
Volume 128, Number 2, October 2019
|
|
|---|---|---|
| Article Number | 27002 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/128/27002 | |
| Published online | 02 December 2019 | |
First-order phase transition by the XY-model of particle dynamics
Department of Physics, Alzahra University - P. O. Box 19938, Tehran 91167, Iran
Received: 31 July 2019
Accepted: 18 October 2019
A gas-liquid type of phase transition is found based on the particle dynamics on a radius-R circle in which the coordinate appears as the angle-variable of the 1D XY-model. Due to the specific appearance of a compact-space radius (volume) in the present interpretation of the XY-model, the ground state develops a minimum at some critical radius, leading to the multi-valued Gibbs energy similar to systems with first-order phase transition.
PACS: 75.10.Hk – Classical spin models / 64.70.F- – Liquid-vapor transitions
© EPLA, 2019
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