Heterogeneous crystallization near structured walls in quenched two-dimensional binary colloidal suspensions

作者: Lahcen Assoud , René Messina , Hartmut Löwen

DOI: 10.1080/00268976.2011.562871

关键词:

摘要: Crystallization near structured substrates is explored by extensive Brownian dynamics computer simulations of two-dimensional equimolar binary colloidal suspensions. The particles are interacting via repulsive dipole–dipole forces. two species have different (big and small) dipole moments which tunable an external magnetic field. A quench realized a sudden drastic increase the field formally corresponds to zero temperature. walls modelled fixed on alternating square lattice cut along (10) direction. Two situations studied compared where outermost layer either consists big or small dipolar particles. Both these structures favour local crystallites pick up symmetry substrate. After equilibrium state coincides exactly with that imposed wall. relaxation behaviour ...

参考文章(52)
Alexandros Pertsinidis, X. S. Ling, Diffusion of point defects in two-dimensional colloidal crystals Nature. ,vol. 413, pp. 147- 150 ,(2001) , 10.1038/35093077
T. Kawasaki, H. Tanaka, Formation of a crystal nucleus from liquid Proceedings of the National Academy of Sciences of the United States of America. ,vol. 107, pp. 14036- 14041 ,(2010) , 10.1073/PNAS.1001040107
Thomas Palberg, Andreas Stipp, Eckhard Bartsch, Unusual Crystallization Kinetics in a Hard Sphere Colloid-Polymer Mixture Physical Review Letters. ,vol. 102, pp. 038302- ,(2009) , 10.1103/PHYSREVLETT.102.038302
H Emmerich, Heterogenous nucleation and microstructure formation—a scale- and system-bridging approach Journal of Physics: Condensed Matter. ,vol. 21, pp. 460301- ,(2009) , 10.1088/0953-8984/21/46/460301
K Franzrahe, P Nielaba, A Ricci, K Binder, S Sengupta, P Keim, G Maret, Field-induced ordering phenomena and non-local elastic compliance in two-dimensional colloidal crystals Journal of Physics: Condensed Matter. ,vol. 20, pp. 404218- ,(2008) , 10.1088/0953-8984/20/40/404218
Urs Gasser, Eric R Weeks, Andrew Schofield, PN Pusey, DA Weitz, Real-Space Imaging of Nucleation and Growth in Colloidal Crystallization Science. ,vol. 292, pp. 258- 262 ,(2001) , 10.1126/SCIENCE.1058457
Nina V. Dziomkina, G. Julius Vancso, Colloidal crystal assembly on topologically patterned templates Soft Matter. ,vol. 1, pp. 265- 279 ,(2005) , 10.1039/B503145C
F. Ebert, P. Keim, G. Maret, Local crystalline order in a 2D colloidal glass former European Physical Journal E. ,vol. 26, pp. 161- 168 ,(2008) , 10.1140/EPJE/I2007-10270-8
Richard P Sear, Nucleation: theory and applications to protein solutions and colloidal suspensions Journal of Physics: Condensed Matter. ,vol. 19, pp. 033101- ,(2007) , 10.1088/0953-8984/19/3/033101
I. R. Mcdonald, J.‐P. Hansen, Douglas Henderson, Theory of simple liquids ,(1976)