| Magneto-optical effect of TEB30A liquid crystal doped with thulium oxides |
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| 作者姓名： | 刘桂香 金香 |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant No.50862007);the Natural Science Foundation of Inner Mongolia Autonomous Region,China(Grant No.20080404MS0114);the Inner Mongolia Autonomous Region Scientific Research Fund,China(Grant No.NJZY12203) |
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| 摘 要： | The influences of an external magnetic field on the optical properties of the TEB30A nematic liquid crystal doped with thulium oxides （Gd203, Dy203, Nd203, Y203, and Sm203） are studied. It is shown that a magnetic field applied parallelly to the sample cell surface leads to the rotational orientation of mesogenes. All samples except for the sample doped with Sm203 nanoparticles undergo structural deformations. The behavior of the TEB30A/Sm203 differs from those of the TEB30A liquid crystal doped with other four nanoparticles. The presence of Sm203 nanoparticles in the TEB30A liquid crystal does not cause the structural deformation of the liquid crystal matrix. At the same time, the anchoring type of the liquid crystal molecules on the nanoparticle surface is different. The director n is parallel to the magnetic moment/~ in the TEB30A/Sm203, and inclined to the magnetic moment/~ in the TEB30A/Nd203, and perpendicular to the magnetic moment/~ in each of TEB30A/Gd203, TEB30A/Dy203, and TEB30A/Y203. Besides, the dependence of the structural deformation on the critical magnetic field for the TEB30A is obtained.
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| 关 键 词： | 向列液晶 氧化物 掺铥 光效应 纳米粒子 结构变形 外部磁场 细胞表面 |
Magneto-optical effect of TEB30A liquid crystal doped with thulium oxides |
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| Abstract: | magnetic field, TEB30A nematic liquid crystal, thulium oxides |
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| Keywords: | magnetic field TEBA nematic liquid crystal thulium oxides |
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