Lyotropic ferronematics: Magnetic orientational transition in the discotic phase

We report the synthesis of lyotropic ferronematics with a content of magnetic nanoparticles ($\rm \sim 6 \;nm$) up to 1 vol.%. In the ferrodiscotic phase we observe a magnetic Frederiks transition with critical fields about two orders of magnitude lower than that for an undoped lyotropic system. A m...

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Published in:Europhysics letters 1998-03, Vol.41 (5), p.507-512
Main Authors: Berejnov, V, Bacri, J.-C, Cabuil, V, Perzynski, R, Raikher, Yu
Format: Article
Language:English
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61.30.Eb
61.30.Gd
75.50.Mm
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description We report the synthesis of lyotropic ferronematics with a content of magnetic nanoparticles ($\rm \sim 6 \;nm$) up to 1 vol.%. In the ferrodiscotic phase we observe a magnetic Frederiks transition with critical fields about two orders of magnitude lower than that for an undoped lyotropic system. A model accounting for the magnetic polarization behavior of the studied ferronematics is presented.
doi_str_mv 10.1209/epl/i1998-00182-9
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source Institute of Physics:Jisc Collections:IOP Publishing Read and Publish 2024-2025 (Reading List)
subjects 61.30.Eb
61.30.Gd
75.50.Mm
title Lyotropic ferronematics: Magnetic orientational transition in the discotic phase
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