The parabolic focal conic : a new smectic a defectReportar como inadecuado

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Abstract : The special case of a focal conic defect in which the line discontinuities form a pair of confocal parabolae a parabolic focal conic has been observed in smectic A cyanobenzylidene octyloxyaniline. The geometry of these defects has been studied and used to determine their interactions with bounding surfaces and with each other. The polygonal texture obtained by dilation of smectic A and cholesteric plane textures is shown to be an array of parabolic focal conic defects. The generation and structure of such arrays will be discussed.

Keywords : organic compounds smectic liquid crystals

Autor: Ch. S. Rosenblatt R. Pindak N.A. Clark R.B. Meyer



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