Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.055702
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Funding
- Deutsche Forschungsgemeinschaft [SFB TR6, SPP 1296]
- German-Japanese project [LO 418/15]
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A microscopic field theory for crystallization in active systems is proposed which unifies the phase-field-crystal model of freezing with the Toner-Tu theory for self-propelled particles. A wealth of different active crystalline states are predicted and characterized. In particular, for increasing strength of self-propulsion, a transition from a resting crystal to a traveling crystalline state is found where the particles migrate collectively while keeping their crystalline order. Our predictions, which are verifiable in experiments and in particle-resolved computer simulations, provide a starting point for the design of new active materials. DOI: 10.1103/PhysRevLett.110.055702
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