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Study of magnetite nanoparticles embedded in lyotropic liquid crystals

✍ Scribed by F.R. Arantes; A.M. Figueiredo Neto; D.R. Cornejo

Publisher
Elsevier
Year
2010
Tongue
English
Weight
400 KB
Volume
9
Category
Article
ISSN
1875-3892

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✦ Synopsis

A study about the magnetic behaviour of magnetite nanoparticles diluted in lyotropic liquid crystals was carried out. It was corroborated that micellar phases of the liquid crystal suppressed the superparamagnetism of the nanoparticles by rising the blocking temperature beyond the room temperature. Phase transitions in the lyotropic mixtures can be determined from M vs. T curves of the ferrolyotropic. When the liquid crystal is in the nematic discotic phase, the magnetization and the susceptibility of the mixture mimics the behaviour of the orientational order parameter of the phase.

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