Reentrant and isostructural transitions in a cluster-crystal former.
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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.
Published Version (Please cite this version)10.1103/PhysRevLett.105.245701
Publication InfoZhang, K; Charbonneau, Patrick; & Mladek, BM (2010). Reentrant and isostructural transitions in a cluster-crystal former. Phys Rev Lett, 105(24). pp. 245701. 10.1103/PhysRevLett.105.245701. Retrieved from http://hdl.handle.net/10161/12597.
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Associate Professor of Chemistry
Professor Charbonneau studies soft matter. His work combines theory and simulation to understand the glass problem, protein crystallization, microphase formation, and colloidal assembly in external fields.