Nematic phase characterisation of the self-assembling sphere-cylinders based on the theoretically calculated RDFs

Autor(en)

Elena S. Pyanzina, Sofia S. Kantorovich, Cristiano De Michele

Abstrakt

Abstract: We put forward a theoretical framework to calculate pair distribution functions in the nematic liquid crystals formed by sphere-cylinders that self-assemble in linear chain structures. For a nematically ordered system, one can distinguish between the spatial correlations in the plane perpendicular to the crystalline axis, and in the direction parallel to the latter. Following this separation, we show that the RDFs in the parallel case can be described using a superposition of a chain model and Onsager distribution, whereas the RDFs in the perpendicular case turn out to be that of the soft disks. Based on this concept, we show how the spatial correlations in the system are influenced by the nematic order parameter. We conclude that even if the nematic ordering is high in the system, the imperfection of the crystal is strongly reflected in the pair distributions. Graphical abstract: [Figure not available: see fulltext.]

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Ural Federal University, Università degli Studi di Roma La Sapienza

Journal

European Physical Journal E

Band

38

Anzahl der Seiten

6

ISSN

1292-8941

DOI

https://doi.org/10.1140/epje/i2015-15081-8

Publikationsdatum

07-2015

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik, 103023 Polymerphysik, 103017 Magnetismus

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Chemie, Allgemeine Materialwissenschaften, Biophysics, Biotechnology, Surfaces and Interfaces

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/afa1c192-f6c7-4754-8fc3-17ef768826ea