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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1650
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dc.contributor.authorLe, Khoa Van-
dc.contributor.authorDhara, Surajit-
dc.contributor.authorSadashiva, B.K.-
dc.contributor.authorTakanishi, Yoichi-
dc.contributor.authorTakezoe, Hideo-
dc.date.accessioned2007-01-03T06:37:00Z-
dc.date.available2007-01-03T06:37:00Z-
dc.date.issued2006-09-15-
dc.identifier.citationJapanese Journal of Applied Physics, 2006, Vol.45, pL1013-L1015en
dc.identifier.issn0021-4922-
dc.identifier.issn1347-4065 (online)-
dc.identifier.urihttp://hdl.handle.net/2289/1650-
dc.descriptionRestricted Access.en
dc.description.abstractWe report the first detailed optical and electrical characterizations of the nematic (N) phase of a banana liquid crystal, i.e., pretilt angle, and optical and dielectric anisotropies, and point out the difference from those of rodlike molecules. The pretilt angle measurements using a conventional crystal rotation method show that the pretilt angle is very small (less than 1°) even in cells with a polyimide film yielding a high pretilt angle like 8° for calamitic molecules. We also measured the birefringence Δn in the N phase as a function of temperature and estimated the orientational order parameter S. The medium shows a small negative dielectric anisotropy in the N phase and the anisotropy becomes large in the B2 phase mainly because of the tilt of the molecules from the layer normal.en
dc.format.extent177152 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe Japanese Society of Applied Physicsen
dc.relation.urihttp://jjap.ipap.jp/link?JJAP/45/L1013/en
dc.relation.urihttp://dx.doi.org/10.1143/JJAP.45.L1013en
dc.rights(2006) by The Japan Society of Applied Physicsen
dc.subjectbanana liquid crystalen
dc.subjectnematic phaseen
dc.subjectpretilt angleen
dc.subjectbirefringenceen
dc.subjectdielectric constanten
dc.subjectorder parameteren
dc.titleCharacterization of nematic phase of banana liquid crystalen
dc.typeArticleen
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