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Crystals 2015, 5(2), 206-214; doi:10.3390/cryst5020206

Ferronematics Based on Paramagnetic Nitroxide Radical Liquid Crystal

1
Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
2
PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Hiroyuki Yoshida
Received: 23 March 2015 / Revised: 16 April 2015 / Accepted: 20 April 2015 / Published: 27 April 2015
(This article belongs to the Special Issue Liquid Crystal Films)
View Full-Text   |   Download PDF [715 KB, uploaded 27 April 2015]   |  

Abstract

We have prepared novel ferronematics based on a paramagnetic liquid crystalline (LC) material. Our ferronematics can disperse a higher volume fraction of magnetic nanoparticles compared to classical ferronematics because paramagnetic nature of the host LC material prevents the aggregation of magnetic nanoparticles. The interactions between the magnetic nanoparticles and the LC material enhance a magnetic anisotropy of ferronematics and improve the magnetic responsivity. View Full-Text
Keywords: ferronematics; paramagnetic liquid crystals; Fe3O4 nanoparticles; Frederiks threshold; magnetic-field-induced molecular reorientation ferronematics; paramagnetic liquid crystals; Fe3O4 nanoparticles; Frederiks threshold; magnetic-field-induced molecular reorientation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Akita, T.; Uchida, Y.; Nakagami, S.; Kiyohara, D.; Nishiyama, N. Ferronematics Based on Paramagnetic Nitroxide Radical Liquid Crystal. Crystals 2015, 5, 206-214.

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