Surface and bulk uniaxial to biaxial smectic-A transition in a bent core liquid crystal

Lidong Pan; B. K. McCoy; Shun Wang; Wolfgang Weissflog; Cheng-Cher Huang

doi:10.1103/PhysRevLett.105.117802

Surface and bulk uniaxial to biaxial smectic-A transition in a bent core liquid crystal

Lidong Pan, B. K. McCoy, Shun Wang, Wolfgang Weissflog, Cheng-Cher Huang

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A null transmission ellipsometer was employed to study the uniaxial to biaxial smectic-A phase transition of a bent core liquid crystal material. Free-standing films of thicknesses ranging from 5 molecular layers to more than 300 were prepared and studied. Critical exponents for both the surface and interior biaxiality were obtained. The results were discussed in the general framework of phase transition in lower dimensions.

Original language	English (US)
Article number	117802
Journal	Physical review letters
Volume	105
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.105.117802
State	Published - Sep 10 2010

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10.1103/PhysRevLett.105.117802

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abstract = "A null transmission ellipsometer was employed to study the uniaxial to biaxial smectic-A phase transition of a bent core liquid crystal material. Free-standing films of thicknesses ranging from 5 molecular layers to more than 300 were prepared and studied. Critical exponents for both the surface and interior biaxiality were obtained. The results were discussed in the general framework of phase transition in lower dimensions.",

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AU - Weissflog, Wolfgang

AU - Huang, Cheng-Cher

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AB - A null transmission ellipsometer was employed to study the uniaxial to biaxial smectic-A phase transition of a bent core liquid crystal material. Free-standing films of thicknesses ranging from 5 molecular layers to more than 300 were prepared and studied. Critical exponents for both the surface and interior biaxiality were obtained. The results were discussed in the general framework of phase transition in lower dimensions.

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Surface and bulk uniaxial to biaxial smectic-A transition in a bent core liquid crystal

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