dc.contributor.advisor | Vink, Richard L. C. Dr. | de |
dc.contributor.author | Fish, Jonathan | de |
dc.date.accessioned | 2012-01-12T15:32:45Z | de |
dc.date.accessioned | 2013-01-18T13:37:13Z | de |
dc.date.available | 2013-01-30T23:51:10Z | de |
dc.date.issued | 2012-01-12 | de |
dc.identifier.uri | http://hdl.handle.net/11858/00-1735-0000-0006-B543-4 | de |
dc.identifier.uri | http://dx.doi.org/10.53846/goediss-2811 | |
dc.description.abstract | Wir benutzen Simulationen um den isotropisch-nematisch Phasenuebergang von Fluessigkristallen zu untersuchen. Mit modernen Algorithmen zeigen wir, dass das Lebwohl-Lasher Modell einen schwachen erste-Ordnung Phasenuebergang zeigt, wie auch in Experimenten gefunden. Durch Aenderung eines mikroskopischen Details zeigen wir, dass der makroskopische Phasenuebergang verstaerkt sein kann. Unsere Simulationen werden durch ebene Einschraekungen und Stoerstellen verkompliziert. In beiden Faellen sind die moeglichen Phaseuebergaenge erster Ordnung, kontinuerlich, oder zerstoert, abhaengig von den mikroskopischen Details. | de |
dc.format.mimetype | application/pdf | de |
dc.language.iso | eng | de |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ | de |
dc.title | Phase Behavior of Liquid Crystals in Confinement | de |
dc.type | doctoralThesis | de |
dc.title.translated | Phasenverhalten von eingeschlossenen Fluessigkristallen | de |
dc.contributor.referee | Mueller, Marcus Prof. Dr. | de |
dc.date.examination | 2011-10-10 | de |
dc.subject.dnb | 530 Physik | de |
dc.description.abstracteng | We use computer simulations to investigate the isotropic-to-nematic phase transition of liquid crystals. Using the Lebwohl-Lasher model with sophisticated algorithms, the phase transition is found to match experimental results and is weakly first-order in bulk. By changing the strength of a microscopic detail we show the macroscopic phase transition can be made more strongly first-order. Our simulations are made more complicated by adding planar confinement and quenched disorder. In both cases, depending on the microscopic detail, the possible phase behaviors are a first-order phase transition, a continuous phase transition, or no phase transition at all. | de |
dc.contributor.coReferee | Kree, Reiner Prof. Dr. | de |
dc.subject.topic | Physics | de |
dc.subject.ger | Fluessigkristallen | de |
dc.subject.ger | Störstellen | de |
dc.subject.ger | Lebwohl-Lasher Modell | de |
dc.subject.eng | liquid crystals | de |
dc.subject.eng | quenched disorder | de |
dc.subject.eng | Lebwohl-Lasher model | de |
dc.subject.bk | 33.25 | de |
dc.identifier.urn | urn:nbn:de:gbv:7-webdoc-3319-5 | de |
dc.identifier.purl | webdoc-3319 | de |
dc.affiliation.institute | Fakultät für Physik | de |
dc.subject.gokfull | RDI700 | de |
dc.identifier.ppn | 684939819 | de |