Reentrant and isostructural transitions in a cluster-crystal former.

Abstract

We study the low-temperature behavior of a simple cluster-crystal forming system through simulation. We find the phase diagram to be hybrid between the Gaussian core model and the penetrable sphere model. The system additionally exhibits S-shaped doubly reentrant phase sequences as well as critical isostructural transitions between crystals of different average lattice site occupancy. Because of the possible annihilation of lattice sites and accompanying clustering, the system moreover shows an unusual softening upon compression.

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Cite this paper

@article{Zhang2010ReentrantAI, title={Reentrant and isostructural transitions in a cluster-crystal former.}, author={Kai Zhang and Patrick Charbonneau and Bianca M. Mladek}, journal={Physical review letters}, year={2010}, volume={105 24}, pages={245701} }