Switching mechanism in polar columnar mesophases made of bent-core molecules.
Switching mechanism in polar columnar mesophases made of bent-core molecules.
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由弯曲核分子组成的极性柱状中间相的转换机制。
DOI：
10.1002/cphc.200400623
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
J. Mieczkowski
中科院分区：
文献类型：
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作者：
E. Górecka;N. Vaupotič;D. Pociecha;M. Čepič;J. Mieczkowski
研究了弯曲分子(B(1RevV)和B(1RevTilted))在外加电场作用下形成的极性破碎层状柱状相的行为。在极性B(1RevTilted)柱状相中存在两种相互竞争的铁电转换机制：围绕分子长轴的集体旋转和围绕倾斜锥体的集体旋转。所提出的模型表明，区分开关类型的主要因素是柱横截面的宽度。
The behaviour of polar, broken-layer-type columnar phases made of bent molecules (B(1Rev) and B(1RevTilted)) was studied under an applied electric field. There are two competing mechanisms of ferroelectric switching in the polar B(1RevTilted) columnar phase: collective rotation around the long molecular axis and collective rotation around the tilt cone. The proposed model shows that the main factor discriminating the type of switching is the width of the column cross-section.