Experimental realization of biaxial liquid crystal phases in colloidal dispersions of boardlike particles

E van den Pol; A.V. Petukhov; D.M.E. Thies-Weesie; D.V. Belov; G.J. Vroege

Experimental realization of biaxial liquid crystal phases in colloidal dispersions of boardlike particles

E van den Pol, A.V. Petukhov, D.M.E. Thies-Weesie, D.V. Belov, G.J. Vroege

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Abstract

Biaxial nematic and biaxial smectic phases were found in a colloidal model system of goethite ( -FeOOH) particles with a simple boardlike shape and short-range repulsive interaction. The macroscopic domains were oriented by a magnetic field and their structure was revealed by small angle x-ray scattering. In accordance with theoretical predictions, biaxiality appears in a system with particles that have a shape almost exactly in between rodlike and platelike. Our results suggest that biaxial phases can be readily obtained by a proper choice of the particle shape.

Original language	English
Pages (from-to)	258301/1-258301/4
Number of pages	4
Journal	Physical Review Letters
Volume	103
Publication status	Published - 2009

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title = "Experimental realization of biaxial liquid crystal phases in colloidal dispersions of boardlike particles",

abstract = "Biaxial nematic and biaxial smectic phases were found in a colloidal model system of goethite ( -FeOOH) particles with a simple boardlike shape and short-range repulsive interaction. The macroscopic domains were oriented by a magnetic field and their structure was revealed by small angle x-ray scattering. In accordance with theoretical predictions, biaxiality appears in a system with particles that have a shape almost exactly in between rodlike and platelike. Our results suggest that biaxial phases can be readily obtained by a proper choice of the particle shape.",

author = "{van den Pol}, E and A.V. Petukhov and D.M.E. Thies-Weesie and D.V. Belov and G.J. Vroege",

year = "2009",

language = "English",

volume = "103",

pages = "258301/1--258301/4",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Experimental realization of biaxial liquid crystal phases in colloidal dispersions of boardlike particles

AU - van den Pol, E

AU - Petukhov, A.V.

AU - Thies-Weesie, D.M.E.

AU - Belov, D.V.

AU - Vroege, G.J.

PY - 2009

Y1 - 2009

N2 - Biaxial nematic and biaxial smectic phases were found in a colloidal model system of goethite ( -FeOOH) particles with a simple boardlike shape and short-range repulsive interaction. The macroscopic domains were oriented by a magnetic field and their structure was revealed by small angle x-ray scattering. In accordance with theoretical predictions, biaxiality appears in a system with particles that have a shape almost exactly in between rodlike and platelike. Our results suggest that biaxial phases can be readily obtained by a proper choice of the particle shape.

AB - Biaxial nematic and biaxial smectic phases were found in a colloidal model system of goethite ( -FeOOH) particles with a simple boardlike shape and short-range repulsive interaction. The macroscopic domains were oriented by a magnetic field and their structure was revealed by small angle x-ray scattering. In accordance with theoretical predictions, biaxiality appears in a system with particles that have a shape almost exactly in between rodlike and platelike. Our results suggest that biaxial phases can be readily obtained by a proper choice of the particle shape.

M3 - Article

SN - 0031-9007

VL - 103

SP - 258301/1-258301/4

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Experimental realization of biaxial liquid crystal phases in colloidal dispersions of boardlike particles

Abstract

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