Effects of magnetic order on charge transport in conducting polymers

Pekka Kuivalainen; Henrik Stubb; Heikki Isotalo; Klaus Lindberg

doi:10.1016/0379-6779(87)90073-7

Effects of magnetic order on charge transport in conducting polymers

Pekka Kuivalainen
, Henrik Stubb
, Heikki Isotalo
, Klaus Lindberg

VTT Technical Research Centre of Finland

Helsinki University of Technology

Research output: Contribution to journal › Article › Scientific

1 Citation (Scopus)

Abstract

We have studied the effect of charge carrier spin-magnetic ion interactions on charge transport in inhomogeneous polymers where the highly-conducting regions of the material order magnetically. This is the case for example in heavily FeCl3-doped (CH)x or in polymer composites consisting of a magnetic metal or a magnetic semiconductor embedded in an insulating polymer. Our calculated results show that when the conduction is dominated by thin potential barriers as in the fluctuation-induced tunnelling mechanism, the changes in magnetic order due to temperature or magnetic field cause large changes in resistivity. The possibility that the present mechanism can explain the measured positive magnetoresistance in FeCl3-doped (CH)x is discussed.

Original language	English
Pages (from-to)	109-116
Journal	Synthetic Metals
Volume	21
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(87)90073-7
Publication status	Published - 1987
MoE publication type	B1 Article in a scientific magazine
Event	Conference on Electronic Processes in Conducting Polymers - Vadstena, Sweden Duration: 18 Aug 1986 → 20 Aug 1986

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title = "Effects of magnetic order on charge transport in conducting polymers",

abstract = "We have studied the effect of charge carrier spin-magnetic ion interactions on charge transport in inhomogeneous polymers where the highly-conducting regions of the material order magnetically. This is the case for example in heavily FeCl3-doped (CH)x or in polymer composites consisting of a magnetic metal or a magnetic semiconductor embedded in an insulating polymer. Our calculated results show that when the conduction is dominated by thin potential barriers as in the fluctuation-induced tunnelling mechanism, the changes in magnetic order due to temperature or magnetic field cause large changes in resistivity. The possibility that the present mechanism can explain the measured positive magnetoresistance in FeCl3-doped (CH)x is discussed.",

author = "Pekka Kuivalainen and Henrik Stubb and Heikki Isotalo and Klaus Lindberg",

year = "1987",

doi = "10.1016/0379-6779(87)90073-7",

language = "English",

volume = "21",

pages = "109--116",

journal = "Synthetic Metals",

issn = "0379-6779",

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number = "1-3",

note = "Conference on Electronic Processes in Conducting Polymers ; Conference date: 18-08-1986 Through 20-08-1986",

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TY - JOUR

T1 - Effects of magnetic order on charge transport in conducting polymers

AU - Kuivalainen, Pekka

AU - Stubb, Henrik

AU - Isotalo, Heikki

AU - Lindberg, Klaus

PY - 1987

Y1 - 1987

N2 - We have studied the effect of charge carrier spin-magnetic ion interactions on charge transport in inhomogeneous polymers where the highly-conducting regions of the material order magnetically. This is the case for example in heavily FeCl3-doped (CH)x or in polymer composites consisting of a magnetic metal or a magnetic semiconductor embedded in an insulating polymer. Our calculated results show that when the conduction is dominated by thin potential barriers as in the fluctuation-induced tunnelling mechanism, the changes in magnetic order due to temperature or magnetic field cause large changes in resistivity. The possibility that the present mechanism can explain the measured positive magnetoresistance in FeCl3-doped (CH)x is discussed.

AB - We have studied the effect of charge carrier spin-magnetic ion interactions on charge transport in inhomogeneous polymers where the highly-conducting regions of the material order magnetically. This is the case for example in heavily FeCl3-doped (CH)x or in polymer composites consisting of a magnetic metal or a magnetic semiconductor embedded in an insulating polymer. Our calculated results show that when the conduction is dominated by thin potential barriers as in the fluctuation-induced tunnelling mechanism, the changes in magnetic order due to temperature or magnetic field cause large changes in resistivity. The possibility that the present mechanism can explain the measured positive magnetoresistance in FeCl3-doped (CH)x is discussed.

U2 - 10.1016/0379-6779(87)90073-7

DO - 10.1016/0379-6779(87)90073-7

M3 - Article

SN - 0379-6779

VL - 21

SP - 109

EP - 116

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

T2 - Conference on Electronic Processes in Conducting Polymers

Y2 - 18 August 1986 through 20 August 1986

ER -

Effects of magnetic order on charge transport in conducting polymers

Abstract

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