Square colloidal lattices and pair interaction in a binary system of quadrupolar nematic colloids.
Square colloidal lattices and pair interaction in a binary system of quadrupolar nematic colloids.
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四极向列胶体二元系统中的方形胶体晶格和对相互作用。
DOI：
10.1103/physreve.83.041709
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
I. Muševič
中科院分区：
文献类型：
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作者：
U. Ognysta;A. Nych;V. Uzunova;V. M. Pergamenschik;V. Nazarenko;M. Škarabot;I. Muševič
向列液晶中具有法向和切向表面指向矢排列的球形胶体颗粒会产生相反符号的弹性四极，这些四极杆沿着指向矢并垂直于指向矢相互吸引。我们利用混合四极相互作用的这种独特的角度轮廓，通过激光镊子构建具有方形晶格的二维晶体。
Spherical colloidal particles with normal and tangential surface director alignment in a nematic liquid crystal induce elastic quadrupoles of opposite signs that attract one another along and perpendicular to the director. We utilize this unique angular profile of the mixed quadrupolar interaction to build 2D crystals with square lattices by laser tweezers.