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
Appears in Collections:Research Papers (SCM)

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