Surface-freezing transitions and novel tilted heretic phases in smectic liquid-crystal thin films

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题名:	Surface-freezing transitions and novel tilted heretic phases in smectic liquid-crystal thin films
作者:	Chao,CY;Hui,SW;Maclennan,JE;Pang,JZ;Ho,JT
贡献者:	物理研究所
关键词:	X-RAY;TEXTURES
日期:	1999
上传时间:	2010-07-08 14:03:11 (UTC+8)
出版者:	中央大學
摘要:	We report the first unambiguous identification in a thermotropic liquid crystal of a heretic smectic-l, a phase with molecular tilt direction intermediate between those of the smectic-l and smectic-F, using electron diffraction in free-standing films of 5-(4"-hexyl, 3'-fluoro-p-terphenyl-4-oxy)-pentanoic acid ethyl ester. Our structural data directly support the proposed explanation of the unusual stripe phase observed optically. The films show a rich phase diagram as a function of thickness and temperature. A novel phase transition within the surface smectic-l phase is also observed.
關聯:	MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
显示于类别:	[物理研究所] 期刊論文

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