Structuralization of magnetic nanoparticles in 5CB liquid crystals

• Verfasst von: Gdovinová, Veronika [VerfasserIn]
• Verfasst von: Appel, Ingo [VerfasserIn]
• Verfasst von: Behrens, Silke [VerfasserIn]
• Titel: Structuralization of magnetic nanoparticles in 5CB liquid crystals
• Verf.angabe: Veronika Gdovinová, Martin A. Schroer, Natália Tomašovičová, Ingo Appel, Silke Behrens, Jozefína Majorošová, Jozef Kováč, Dmitri I. Svergun and Peter Kopčanský
• E-Jahr: 2017
• Jahr: 26 Sep 2017
• Umfang: 7 S.
• Fussnoten: Gesehen am 25.04.2018
• Titel Quelle: Enthalten in: Soft matter
• Ort Quelle: London : Royal Soc. of Chemistry, 2005
• Jahr Quelle: 2017
• Band/Heft Quelle: 13(2017), 43, Seite 7890-7896
• ISSN Quelle: 1744-6848
• DOI: doi:10.1039/C7SM01234A
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1572348097

Abstract

This work is devoted to the study of highly stable composite systems of the liquid crystal 4-n-pentyl-4′-cyanobiphenyl (5CB) doped with CoFe2O4 magnetic nanoparticles. Ferronematic samples were prepared with two different weight concentrations: sample A 0.085 wt% and sample B 0.062 wt%. The interaction of CoFe2O4 nanoparticles with the liquid crystal was investigated by small-angle X-ray-scattering and magnetization measurements. The obtained results reveal aggregates formed by magnetic nanoparticles that are oriented in the nematic phase. Moreover, the prepared samples show unexpected behaviour of a sudden change in magnetization, which is unusual for such ferronematics.