Lowering of the Magnetic Fréedericksz transition threshold in nematic liquid crystals doped with ferromagnetic nanoparticles

被引：0
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作者：
M. R. Hakobyan
R. S. Hakobyan
机构：
[1] Yerevan State University,
来源：
Journal of Contemporary Physics (Armenian Academy of Sciences) | 2011年 / 46卷
关键词：
nematic liquid crystal; ferromagnetic nanocrystals; magnetic Fréedericksz transition; threshold;
D O I：
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学科分类号：
摘要：
We show that magnetic colloids could increase the coupling of a liquid crystal to a week magnetic field. Magnetic Fréedericksz transition in a planarly oriented nematic liquid crystal doped with spherical ferromagnetic nanoparticles is considered theoretically. It is shown that even spherical nanoparticles could decrease a threshold of this transition because they strongly increase the magnetic field in the medium. This phenomenon indicates the possibility to use the considered system in magneto-optical displays.
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