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Spin-one Ising model for ice VII-plastic ice phase transitions.
Masakazu Matsumoto1, Kazuhiro Himoto, Hideki Tanaka
1Department of Chemistry, Faculty of Science, Okayama University , Okayama 700-8530, Japan.
The Journal of Physical Chemistry. B
|August 22, 2014
Summary
We developed a spin model explaining ice VII-plastic ice phase transitions. This model, an extension of the Blume-Capel model, matches simulation results, suggesting they belong to the same universality class.
Area of Science:
- Condensed matter physics
- Materials science
- Computational physics
Background:
- Recent computer simulations revealed critical phenomena and phase transitions between ice VII and plastic ice phases.
- Understanding these transitions is crucial for materials science and condensed matter physics.
Purpose of the Study:
- To propose a theoretical spin model that accurately describes the observed ice VII-plastic ice phase transitions.
- To incorporate the entropic stabilization effect present in the plastic ice phase into the model.
Main Methods:
- Extension of the Blume-Capel spin-1 Ising model.
- Theoretical modeling compatible with phase transitions and critical phenomena.
Main Results:
- The proposed spin model successfully reproduces the critical phenomena associated with the ice VII-plastic ice phase transition.
- The model's tricritical exponents align with those obtained from computer simulations.
Conclusions:
- The developed spin model is consistent with recent simulation findings for ice VII-plastic ice transitions.
- The model and simulation results indicate that these phenomena belong to the same universality class.
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