Thu, 07 Aug 2008 22:00:31 BST CiteULike: dchen's library [953 articles] http://www.citeulike.org/user/dchen/article/2547832 CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2547832 <i>Physical Review Letters, Vol. 100, No. 10. (2008)</i><br /><br />We study the conditions under which and how an imposed cluster of fixed colloidal particles at prescribed positions triggers crystal nucleation from a metastable colloidal fluid. Dynamical density functional theory of freezing and Brownian dynamics simulations are applied to a two-dimensional colloidal system with dipolar interactions. The externally imposed nucleation clusters involve colloidal particles either on a rhombic lattice or along two linear arrays separated by a gap. Crystal growth occurs after the peaks of the nucleation cluster have first relaxed to a cutout of the stable bulk crystal. Colloidal Crystal Growth at Externally Imposed Nucleation Clusters Sven van Teeffelen Christos Likos Hartmut Löwen doi:10.1103/PhysRevLett.100.108302 Physical Review Letters, Vol. 100, No. 10. (2008) 2008-03-17T22:23:57-00:00 2008 Physical Review Letters 100 10 APS 2008 2d colloids cool crystal