title: Phase-field-crystal simulation of nonequilibrium crystal growth.
abstract: By using the phase field crystal model, we simulate the morphological transition of the crystal growth of equilibrium crystal shape, dendrite, and spherical crystal shape. The relationship among growth morphology, velocity, and density distribution is investigated. The competition between interface energy anisotropy and interface kinetic anisotropy gives rise to the pattern selection of dendritic growth in the diffusion controlled regime under low-crystal-growth velocities. The trapping effect in density diffusion suppresses morphological instabilities under high-crystal-growth velocities, resulting in isotropic growth of spherical crystal. Finally, a morphological phase diagram of crystal growth is constructed as function of the phase field crystal model parameters.
authors.affiliation: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Youyi Western Road 127, 710072 Xi'an, China.
authors.forename: Sai
authors.initials: S
authors.lastname: Tang
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Yan-Mei
authors.initials: YM
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Youyi Western Road 127, 710072 Xi'an, China.
authors.forename: Jincheng
authors.initials: J
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Youyi Western Road 127, 710072 Xi'an, China.
authors.forename: Junjie
authors.initials: J
authors.lastname: Li
authors.affiliation: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Youyi Western Road 127, 710072 Xi'an, China.
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Youyi Western Road 127, 710072 Xi'an, China.
authors.forename: Yaolin
authors.initials: Y
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Youyi Western Road 127, 710072 Xi'an, China.
authors.forename: Yaohe
authors.initials: Y
authors.lastname: Zhou
mesh_terms: D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D008956:Models, Chemical; D008958:Models, Molecular; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D044367:Phase Transition; D012996:Solutions / Q000737:chemistry*
chemical_list: D012996:Solutions