Magnetic properties of poly(3-hexylthiophene)

A room temperature ferromagnetic phase is observed in samples of poly(3-hexylthiophene) partially doped with ClO 4 −. The magnetic behavior presents a strong dependence on the sample preparation conditions, in particular, a dependence with the final potential of the sample after reduction. The origi...

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Published in:Journal of magnetism and magnetic materials 2008-07, Vol.320 (14), p.e193-e195
Main Authors: de Paula, F.R., Walmsley, L., Pereira, E.C., de Oliveira, A.J.A.
Format: Article
Language:English
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Conducting polymers
Ferromagnetism
Poly(3-hexylthiophene)
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description A room temperature ferromagnetic phase is observed in samples of poly(3-hexylthiophene) partially doped with ClO 4 −. The magnetic behavior presents a strong dependence on the sample preparation conditions, in particular, a dependence with the final potential of the sample after reduction. The origin of the ferromagnetism is proposed to be associated with interactions between spin 1/2 polarons formed in the polymeric chain upon doping. The dependence of saturation and spontaneous magnetization as the function of the final potential after reduction shows a way to control the magnetic properties of this polymer.
doi_str_mv 10.1016/j.jmmm.2008.02.045
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subjects Conducting polymers
Ferromagnetism
Poly(3-hexylthiophene)
title Magnetic properties of poly(3-hexylthiophene)
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