Possible phase transition in liquid caesium at ambient pressure

ABSTRACT

We report a molecular dynamics study of liquid caesium at ambient pressure intended to check the possibility of liquid‒liquid phase transformation at $T=590$ K. We find the presence of small kinks on thermodynamic characteristics of the system, but no phase transition.

KEYWORDS:

• Liquid‒liquid phase transition
• caesium
• thermodynamic response functions

Acknowledgments

We thank D.K. Belaschenko and R.M. Khusnutdinoff for help with EAM potential construction and V.V. Brazhkin for useful discussions. This work was carried out using computing resources of the federal collective usage center ‘Complex for simulation and data processing for mega-science facilities’ at NRC ‘Kurchatov Institute’, http://ckp.nrcki.ru, and supercomputers at Joint Supercomputer Center of the Russian Academy of Sciences (JSCC RAS). The work was supported by the Russian Science Foundation (grant no. 14-22-00093).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Russian Science Foundation [grant no. 14-22-00093].