Journal Article10.1140/EPJST/E2013-02075-X
Phase behaviour of lyotropic liquid crystals in external fields and confinement
A B G M Leferink op Reinink,E. van den Pol,Andrei V. Petukhov,Gert Jan Vroege,Henk N. W. Lekkerkerker +4 more
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TL;DR: In this article, the influence of external fields on the phase behavior of colloidal liquid crystals is discussed, including the earth's gravity, electric and magnetic fields, and their effects on the behavior of the liquid crystal phase transitions.
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Abstract: This mini-review discusses the influence of external fields on the phase behaviour of lyotropic colloidal liquid crystals. The liquid crystal phases reviewed, formed in suspensions of highly anisotropic particles ranging from rod- to board- to plate-like particles, include nematic, smectic and columnar phases. The external fields considered are the earth gravitational field and electric and magnetic fields. For electric and magnetic fields single particle alignment, collective reorientation behaviour of ordered phases and field-induced liquid crystal phase transitions are discussed. Additionally, liquid crystal phase behaviour in various confining geometries, e.g. slit-pore, circular and spherical confinement will be reviewed.
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Citations
Simplified Onsager theory for isotropic-nematic phase equilibria of length polydisperse hard rods
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Metal-Organic Framework superstructures with long-ranged orientational order via E-field assisted liquid crystal assembly
Kamal Allahyarli,Michael R. Reithofer,Fei Cheng,Adam J. Young,Endre Kiss,Tristan Tsai Yuan Tan,Alexander Prado-Roller,Jia Min Chin +7 more
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References
Self-diffusion of rodlike viruses through smectic layers.
M. Paul Lettinga,Eric Grelet +1 more
TL;DR: The direct visualization at the scale of single particles of mass transport between smectic layers, also called permeation, in a suspension of rodlike viruses is reported, and the diffusion rate corresponds with the rate calculated from the diffusion in the nematic state with a lamellar periodic ordering potential.
Magnetic-field-induced orientational order in the isotropic phase of hard colloidal platelets.
D. van der Beek,Andrei V. Petukhov,Patrick Davidson,Jacques Ferré,J. P. Jamet,Henricus H. Wensink,Gert Jan Vroege,Wim Bras,Henk N. W. Lekkerkerker +8 more
TL;DR: The magnetic-field-induced orientational order in the isotropic phase of colloidal gibbsite [Al(OH)3] platelets is studied by means of optical birefringence and small-angle x-ray scattering techniques, which leads to an underestimate of the diamagnetic susceptibility anisotropy Delta(chi).
Simplified Onsager theory for isotropic-nematic phase equilibria of length polydisperse hard rods
TL;DR: In this paper, the phase behavior of thin hard rods with length polydispersity was analyzed based on a simplified Onsager theory, obtained by truncating the series expansion of the angular dependence of the excluded volume.
91
Simplified Onsager theory for isotropic-nematic phase equilibria of length polydisperse hard rods
TL;DR: In this paper, the phase behavior of thin hard rods with length polydispersity is analyzed based on a simplified Onsager theory, obtained by truncating the series expansion of the angular dependence of the excluded volume.
90
Stable smectic phase in suspensions of polydisperse colloidal platelets with identical thickness
TL;DR: The nematic and smectic ordering in an aqueous suspension of monolayer alpha -Zirconium phosphate platelets possessing a high polydispersity in diameter but uniform thickness is reported.