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Related Experiment Video

Updated: Oct 28, 2025

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

Insight into Liquid Polymorphism from the Complex Phase Behavior of a Simple Model.

Albert P Bartók¹, György Hantal², Livia B Pártay³

¹Department of Physics and Warwick Centre for Predictive Modelling, School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom.

Physical Review Letters

|July 16, 2021

Summary

The Jagla potential

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Area of Science:

Condensed matter physics
Materials science
Statistical mechanics

Background:

The Jagla potential, a hard-core two-scale ramp model, is used to study phase behavior.
Previous studies suggested a limited phase diagram for the Jagla potential.

Purpose of the Study:

To systematically explore the phase behavior of the Jagla potential.
To identify new crystalline structures and their stability regions.
To accurately determine the melting line and compare it with previous findings.

Main Methods:

Utilized a combination of nested sampling and free energy methods for comprehensive phase behavior exploration.
Applied advanced computational techniques to identify and characterize novel crystalline structures.

Main Results:

Discovered a significantly richer phase diagram for the Jagla potential than previously anticipated.
Identified a family of new crystalline structures stable over extensive regions of the phase diagram.
Located the new melting line at considerably higher temperatures than previously suggested boundaries.

Conclusions:

The Jagla potential exhibits complex phase behavior with extensive regions of novel crystalline phases.
The newly identified crystalline structures possess intricate features, some resembling high-pressure ice VI.
This research refines our understanding of the Jagla potential's phase diagram and associated material properties.