Journal ArticleDOI
Ordered phases of a liquid of biaxial particles
TLDR
In this article, a simple model for an interacting liquid of particles lacking an axis of rotational symmetry is proposed, and the four order parameters necessary to describe an ordered phase are identified.Abstract:
A simple model for an interacting liquid of particles lacking an axis of rotational symmetry is proposed. The four order parameters necessary to describe an ordered phase are identified. An ensemble of such particles is described by a mean field theory. A phase diagram showing both uniaxial and biaxial phases results. The model predicts a phase diagram similar to that of the phenomenological model of Alben.read more
Citations
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Discotic Liquid Crystals: From Tailor-Made Synthesis to Plastic Electronics
Sabine Laschat,Angelika Baro,Nelli Steinke,Frank Giesselmann,Constanze Hägele,Giusy Scalia,Giusy Scalia,Roxana Judele,Elisabeth Kapatsina,Sven Sauer,Alina Schreivogel,Martin Tosoni +11 more
TL;DR: This Review will focus on the major classes of columnar mesogens rather than presenting a library of columner liquid crystals, and emphasis will be given to efficient synthetic procedures, and relevant mesomorphic and physical properties.
Journal ArticleDOI
Observation of a Biaxial Nematic Phase in Potassium Laurate-1-Decanol-Water Mixtures
TL;DR: In this article, the ternary system potassium laurate-1-decanol-D${2}\mathrm{O}$ was studied over concentration ranges where nematic phases are likely to occur.
Journal ArticleDOI
Phase transitions in liquid crystals
TL;DR: A comprehensive overview of phase transition studies can be found in this article, where the authors identify the essential key concepts and points of difficulty associated with the study of phase transitions and discuss the most widely used experimental techniques for measuring these transition properties.
Journal ArticleDOI
Biaxial nematic phases
TL;DR: An overview of the current state of research in the field of biaxial nematic liquid crystalline materials is given in this paper, where the major theoretical concepts are outlined, including the classification to different symmetries, the importance of cooperativity and cluster formation for the development of BN order and the conditions for the establishment of field induced and spontaneous BN in nematic phases.
Journal ArticleDOI
Landau theory of the nematic-isotropic phase transition
TL;DR: A review of the wide variety of predictions that results from a Landau-type of description of the nematic-isotropic phase transition is given in this paper, which includes a discussion of the nature of the order parameter and of the various types of possible phases.
References
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Journal ArticleDOI
The effects of shape on the interaction of colloidal particles
TL;DR: In this article, it was shown that colloids in general are apt to exhibit considerable deviations from Raoult's law and that crystalline phases retaining a fair proportion of solvent may separate from concentrated solutions.
Journal ArticleDOI
Eine einfache molekular-statistische Theorie der nematischen kristallinflüssigen Phase. Teil II
Wilhelm Maier,Alfred Saupe +1 more
TL;DR: In this paper, the authors describe a mittlere Innere Feld einer nematischen Molekülanordnung abgeleitet, and gezeigt, daß this Innere Field in einem gewissen Temperaturbereich einen nematicalhen Ordnungszustand bewirken muß and daß dieser ordnung sustand was with einer bestimmten Temperatur diskontinuierlich und unter Energieaufnahme in die isot
Journal ArticleDOI
Eine einfache molekulare Theorie des nematischen kristallinflüssigen Zustandes
W. Maier,Alfred Saupe +1 more
Journal ArticleDOI
First-Order Phase Transition in a Gas of Long Thin Rods
TL;DR: Onsager's prediction of a first-order phase transition in a gas of long thin rods is verified by extensive calculations on a simple model as mentioned in this paper, where the molecules are rectangular parallelepipeds, of length l and square cross section d×d.