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Differential Scanning Calorimetry of Ferroelectric Liquid Crystal MBOPDOB Near Phase Transitions
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| YIN Zhen*;ZHANG Ming-sheng |
| *Department of Physics, Center for Materials Analysis and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008 |
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| Cite this article: |
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YIN Zhen, ZHANG Ming-sheng 1993 Chin. Phys. Lett. 10 673-675 |
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Abstract Differential scanning calorimetric results of ferroelectric liquid crystal D-4-(2-methylbutoxy)phenyl 4-decyloxybenzoate (MBOPDOB) were recorded. The overcooling of Sm C* phase in the sample promotes the ordering of the molecular orientation. Small heat of the Sm A-Sm C* transition manifests a continuous second-order nature of the transition which is attributed to a large temperature range of the Sm A phase and a small spontaneous polarization. A model structure concerning the small polarization is also discussed.
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| Keywords:
64.70.Md
07.20.Fw
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Published: 01 November 1993
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