Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric Liquid Crystals near the Tricritical Point
The temperature dependence of the tilt angle is studied in the smectic phase near the smectic A-smectic tricritical point for a mixture of 70PD0B in the ferroelectric liquid crystal C7 (). The mean-field models with the biquadratic ( is the spontaneous polarization) and (bilinear) coupling term...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/201972 |
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| author | Mustafa Kurt Hamit Yurtseven |
| author_facet | Mustafa Kurt Hamit Yurtseven |
| author_sort | Mustafa Kurt |
| collection | DOAJ |
| description | The temperature dependence of the tilt angle is studied in the smectic phase near the smectic A-smectic tricritical point for a mixture of 70PD0B in the ferroelectric liquid crystal C7 (). The mean-field models with the biquadratic ( is the spontaneous polarization) and (bilinear) coupling terms in the free energy expansion are used to analyze the experimental data for the tilt angle in this binary mixture. From our analysis, the coefficients given in the free energy expansion of the mean-field models are determined.
Our results show that the mean-field theory explains adequately the observed behaviour of the C7-70PD0B mixture near the tricritical point. |
| format | Article |
| id | doaj-art-5fe1a67d375c4569b1e6cf480fdc209d |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-5fe1a67d375c4569b1e6cf480fdc209d2025-02-03T06:07:54ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242012-01-01201210.1155/2012/201972201972Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric Liquid Crystals near the Tricritical PointMustafa Kurt0Hamit Yurtseven1Department of Physics, Canakkale Onsekiz Mart University, 17100 Canakkale, TurkeyDepartment of Physics, Middle East Technical University, 06531 Ankara, TurkeyThe temperature dependence of the tilt angle is studied in the smectic phase near the smectic A-smectic tricritical point for a mixture of 70PD0B in the ferroelectric liquid crystal C7 (). The mean-field models with the biquadratic ( is the spontaneous polarization) and (bilinear) coupling terms in the free energy expansion are used to analyze the experimental data for the tilt angle in this binary mixture. From our analysis, the coefficients given in the free energy expansion of the mean-field models are determined. Our results show that the mean-field theory explains adequately the observed behaviour of the C7-70PD0B mixture near the tricritical point.http://dx.doi.org/10.1155/2012/201972 |
| spellingShingle | Mustafa Kurt Hamit Yurtseven Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric Liquid Crystals near the Tricritical Point Advances in Condensed Matter Physics |
| title | Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric
Liquid Crystals near the Tricritical Point |
| title_full | Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric
Liquid Crystals near the Tricritical Point |
| title_fullStr | Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric
Liquid Crystals near the Tricritical Point |
| title_full_unstemmed | Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric
Liquid Crystals near the Tricritical Point |
| title_short | Temperature Dependence of the Tilt Angle for the Smectic A-Smectic Transition in a Mixture of C7-70PDOB Ferroelectric
Liquid Crystals near the Tricritical Point |
| title_sort | temperature dependence of the tilt angle for the smectic a smectic transition in a mixture of c7 70pdob ferroelectric liquid crystals near the tricritical point |
| url | http://dx.doi.org/10.1155/2012/201972 |
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