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Title: Two distinct modulated layer structures of an asymmetric bent-shape smectic liquid crystal
Authors: Zhang, C.
Diorio, Nicholas
Radhika, S.
Sadashiva, B.K.
Sprunt, Samuel N.
Jakli, A.
Issue Date: 9-Sep-2012
Publisher: Taylor & Francis
Citation: Liquid Crystals, 2012, Vol.39, p1149-1157
Abstract: We present chemical synthesis, polarising optical microscopy, electric current, and small-angle X-ray scattering measurements on a strongly anisotropic bent-shape liquid crystal material. We find that it has two layer-undulated ferroelectric phases, M1 and M2. In the higher temperature M2 phase the undulation amplitude and period increases on cooling, similar to other published materials. It can be identified with a tilted modulated phase. In the M1 phase the molecular plane is not tilted, and – in sharp contrast with all prior observations – the modulation amplitude and period decrease on cooling. These observations can be explained with a ‘leaning’ director structure, where the leaning angle is decreasing on cooling.
Description: Restricted Access.
ISSN: 0267-8292
1366-5855 (online)
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Copyright: 2012 Taylor & Francis
Appears in Collections:Research Papers (SCM)

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