Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry

Christ Glorieux; Peter De Schrijver; Patrick M. Johnson; Oana Balus; Constantin Serban; Cheng Cher Huang; Jan Thoen

doi:10.1080/10587259908025925

Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry

Christ Glorieux, Peter De Schrijver, Patrick M. Johnson, Oana Balus, Constantin Serban, Cheng Cher Huang, Jan Thoen

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

We have recorded the angular dependence of the ellipsometric signal of bulkisotropic dodecylcyanobiphenyl (12CB) as a function of temperature in the pre-smectic temperature region. Using a simple model, the order parameter of the discontinuously growing smectic surface layer has been determined approaching the isotropic-smectic phase transition temperature. Also the pretransitional isotropic region of the isotropic-smectic transition of the liquid crystal compound 2-(4-(1,1-dihydro-2-(2-perfluorobutoxy)perfluoroethoxy) phenyl-5-octyl pyrimidine (H8F(4,2,1)MOPP) has been investigated.

Original language	English (US)
Pages (from-to)	663-670
Number of pages	8
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	329
DOIs	https://doi.org/10.1080/10587259908025925
State	Published - 1999
Event	Proceedings of the 1998 17th International Liquid Crystal Conference - Strasbourg, France Duration: Jul 19 1998 → Jul 24 1998

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Glorieux, C., De Schrijver, P., Johnson, P. M., Balus, O., Serban, C., Huang, C. C., & Thoen, J. (1999). Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 329, 663-670. https://doi.org/10.1080/10587259908025925

Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry. / Glorieux, Christ; De Schrijver, Peter; Johnson, Patrick M.; Balus, Oana; Serban, Constantin; Huang, Cheng Cher; Thoen, Jan.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 329, 1999, p. 663-670.

Research output: Contribution to journal › Conference article › peer-review

Glorieux, C, De Schrijver, P, Johnson, PM, Balus, O, Serban, C, Huang, CC & Thoen, J 1999, 'Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry', Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, vol. 329, pp. 663-670. https://doi.org/10.1080/10587259908025925

Glorieux C, De Schrijver P, Johnson PM, Balus O, Serban C, Huang CC et al. Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1999;329:663-670. https://doi.org/10.1080/10587259908025925

Glorieux, Christ ; De Schrijver, Peter ; Johnson, Patrick M. ; Balus, Oana ; Serban, Constantin ; Huang, Cheng Cher ; Thoen, Jan. / Smectic layering at the free surface of isotropic liquid crystals in the pre-smectic temperature region characterized by ellipsometry. In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1999 ; Vol. 329. pp. 663-670.

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abstract = "We have recorded the angular dependence of the ellipsometric signal of bulkisotropic dodecylcyanobiphenyl (12CB) as a function of temperature in the pre-smectic temperature region. Using a simple model, the order parameter of the discontinuously growing smectic surface layer has been determined approaching the isotropic-smectic phase transition temperature. Also the pretransitional isotropic region of the isotropic-smectic transition of the liquid crystal compound 2-(4-(1,1-dihydro-2-(2-perfluorobutoxy)perfluoroethoxy) phenyl-5-octyl pyrimidine (H8F(4,2,1)MOPP) has been investigated.",

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AU - Johnson, Patrick M.

AU - Balus, Oana

AU - Serban, Constantin

AU - Huang, Cheng Cher

AU - Thoen, Jan

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N2 - We have recorded the angular dependence of the ellipsometric signal of bulkisotropic dodecylcyanobiphenyl (12CB) as a function of temperature in the pre-smectic temperature region. Using a simple model, the order parameter of the discontinuously growing smectic surface layer has been determined approaching the isotropic-smectic phase transition temperature. Also the pretransitional isotropic region of the isotropic-smectic transition of the liquid crystal compound 2-(4-(1,1-dihydro-2-(2-perfluorobutoxy)perfluoroethoxy) phenyl-5-octyl pyrimidine (H8F(4,2,1)MOPP) has been investigated.

AB - We have recorded the angular dependence of the ellipsometric signal of bulkisotropic dodecylcyanobiphenyl (12CB) as a function of temperature in the pre-smectic temperature region. Using a simple model, the order parameter of the discontinuously growing smectic surface layer has been determined approaching the isotropic-smectic phase transition temperature. Also the pretransitional isotropic region of the isotropic-smectic transition of the liquid crystal compound 2-(4-(1,1-dihydro-2-(2-perfluorobutoxy)perfluoroethoxy) phenyl-5-octyl pyrimidine (H8F(4,2,1)MOPP) has been investigated.

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