Dresden 2011 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 43: Soft Matter

DY 43.6: Talk

Friday, March 18, 2011, 11:30–11:45, ZEU 118

Helical crystals of charged colloids in cylindrical confinement — •Erdal Celal Oguz, René Messina, and Harmut Löwen — Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany

By lattice sum calculations we explore the ground state phase diagram of screened Coulomb particles in a cylindrical confinement. We obtain several chiral as well as achiral helical phases. Similar systems were studied with dusty plasmas [1] and hard spheres [2]. We also compare our results to computer simulations and experiments with highly screened particles [2,3].

[1] V. N. Tsytovich, G. E. Morfill, V. E. Fortov, N. G. Gusein-Zade, B. A. Klumov and S. V. Vladimirov, New Journal of Physics 9, 2007

[2] G. T. Pickett, M. Gross and H. Okuyama, Phys. Rev. Lett. 85, 2000

[3] M. Tymczenko, L. F. Marsal, T. Trifonov, I. Rodriguez, F. Ramiro-Manzano, J. Pallares, A. Rodriguez, R. Alcubilla and F. Meseguer, Adv. Mater. 20, 2008