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Melting of two-dimensional deformable particle systems

Author

Listed:
  • Guo, Rui-xue
  • Li, Jia-jian
  • Ai, Bao-quan

Abstract

Two-dimensional melting is an important phase behavior, but the impact of deformability on the solid–liquid transition remains an open question. To address this, we conducted a numerical study of melting in systems of deformable particles with many degrees of freedom. We found that increasing temperature or the shape parameter leads to a transition from solid to liquid, and that the system melts in two steps, with a continuous solid-hexatic transition followed by a first-order hexatic-liquid transition. Our conclusions are supported by observations of the behavior of topological defects. This work presents the complete phase diagram of two-dimensional deformable particle systems, offering insights into the solid–liquid transition in soft matter.

Suggested Citation

  • Guo, Rui-xue & Li, Jia-jian & Ai, Bao-quan, 2023. "Melting of two-dimensional deformable particle systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 623(C).
    • Handle: RePEc:eee:phsmap:v:623:y:2023:i:c:s0378437123003886
    DOI: 10.1016/j.physa.2023.128833
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