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Journal of Materials Science

Erschienen in:

27.06.2018 | Polymers

Magnetoresistance of a self-assembled polyaniline single microfiber

verfasst von: Lei Chang, Xin Wang, Yuchun Zhang, Hui Li, Yong Yan

Erschienen in: Journal of Materials Science | Ausgabe 20/2018

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Abstract

Polyaniline microfibers were synthesized by using a self-assembly method. The electron hopping transport in this partially dedoped polyaniline single fiber showed typical bias-dependent characteristics. The magnetoresistance properties of the fiber were systematically investigated. In this microfiber, both positive and negative magnetoresistances were observed. An apparent positive magnetoresistance (> 1%) was found at 50 K. This temperature is much higher than previous reports of single or few nanofiber/tubes bundles (< 10 K). With the increase in temperature, the positive magnetoresistance was converted to the negative magnetoresistance where the transition happened at ca. 90 K. Moreover, the magnetoresistance was also sensitive to the applied bias. These observations could be explained by using the combination or competition of electron wave function shrinkage effect, quantum decoherence effect, as well as localized states coupling effect.

Vorheriger Artikel Multiscale description and prediction of the thermomechanical behavior of multilayered plasticized PVC under a wide range of strain rate

Nächster Artikel The constitutive relation of self-healing hierarchical fiber bundle materials

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Titel: Magnetoresistance of a self-assembled polyaniline single microfiber
verfasst von: Lei Chang
Xin Wang
Yuchun Zhang
Hui Li
Yong Yan
Publikationsdatum: 27.06.2018
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 20/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-018-2640-6

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