@article{120806,
  author = {D. A. Saville and J. Chun and J. L. Li and H. C. Schniepp and R. Car and I.A. Aksay},
  title = {Orientational order of molecular assemblies on inorganic crystals},
  abstract = { Surfactant micelles form oriented arrays on crystalline substrates although registration is unexpected since the template unit cell is small compared to the size of a rodlike micelle. Interaction energy calculations based on molecular simulations reveal that orientational energy differences on a molecular scale are too small to explain matters. With atomic force microscopy, we show that orientational ordering is a dynamic, multimolecule process. Treating the cooperative processes as a balance between van der Waals torque on a large, rodlike micellar assembly and Brownian motion shows that orientation is favored. },
  year = {2006},
  journal = {Physical Review Letters},
  volume = {96},
  month = {01/2006},
  isbn = {0031-9007},
  language = {eng},
}