DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2011 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

CPP: Fachverband Chemische Physik und Polymerphysik

CPP 17: Liquid Crystals

CPP 17.1: Topical Talk

Tuesday, March 15, 2011, 14:00–14:30, ZEU 114

Modulated mesophases: from labyrinths to liquid ferroelectric chords. — •Alexey Eremin1, Ulrike Kornek1, Ralf Stannarius1, Antal Jákli2, and Hideo Takezoe31Otto-von-Guericke Universität, IEP/ANP, 39106 Magdeburg — 2Liquid Crystal Institute, Kent State University, USA — 3Dept. of Organic and Polymeric Materials, Tokyo Institute of Technology, Japan

Competition between incompatible ground states often leads to frustration, which is manifested by spatially modulated states. This phenomenon can be found in various physical and chemical systems such as semiconductors, lipid membranes, ferrofluids, or superconductors. Here we show an example of a polarization modulated liquid crystal phase exhibiting a variety of fascinating structures. Those include labyrinths of layer dislocations in free-standing films and stable ferroelectric fibres with liquid-like order of molecules in cylindrically wrapped layers. Using non-linear optics and polarising microscopy we get insight into the internal organisation of the polar structure of the phase in different geometries as well as the mechanical properties the fibres.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2011 > Dresden