Conductivity and magnetoresistance of polyacetylene fiber network

G. T. Kim; M. Burghard; D. S. Suh; K. Liu; J. G. Park; S. Roth; Y. W. Park

doi:10.1016/S0379-6779(99)00091-0

Conductivity and magnetoresistance of polyacetylene fiber network

G. T. Kim, M. Burghard, D. S. Suh, K. Liu, J. G. Park, S. Roth, Y. W. Park

Department of Physics

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

The four-probe conductivity and magnetoresistance (MR) in micron-scale for the iodine-doped polyacetylene (PA) fiber network were measured. A remarkably weaker temperature dependence of resistivity compared to that of the bulk PA film was observed. The transverse MR at T = 1.5 K was negative and its relative magnitude was approximately 0.1% at H = 10 T. The slow oscillatory tendency with small amplitude was suggested in MR. The results suggest the importance of contact barriers in the nanosize PA fiber network.

Original language	English
Pages (from-to)	207-210
Number of pages	4
Journal	Synthetic Metals
Volume	105
Issue number	3
DOIs	https://doi.org/10.1016/S0379-6779(99)00091-0
State	Published - 15 Sep 1999

Bibliographical note

Funding Information:
We would specially give our gratitudes to M. Riek, M. Schmidt, J.H. Smet, A. Christian, F. Zha, J. Muster, B. Steffi, K. Vojislav at MPI, Stuttgart, for valuable discussions and furnishing their facilities. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by NSF Cooperative Agreement No. DMR-9527035 and by the State of Florida. One of the authors (YWP) appreciates Prof. J.R. Schrieffer for his kind arrangement to work at the NHMFL. This work was supported by STEPI under the contract no. 98-I-01-04-A-026, Ministry of Science and Technology (MOST), Korea.

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title = "Conductivity and magnetoresistance of polyacetylene fiber network",

abstract = "The four-probe conductivity and magnetoresistance (MR) in micron-scale for the iodine-doped polyacetylene (PA) fiber network were measured. A remarkably weaker temperature dependence of resistivity compared to that of the bulk PA film was observed. The transverse MR at T = 1.5 K was negative and its relative magnitude was approximately 0.1% at H = 10 T. The slow oscillatory tendency with small amplitude was suggested in MR. The results suggest the importance of contact barriers in the nanosize PA fiber network.",

author = "Kim, {G. T.} and M. Burghard and Suh, {D. S.} and K. Liu and Park, {J. G.} and S. Roth and Park, {Y. W.}",

note = "Funding Information: We would specially give our gratitudes to M. Riek, M. Schmidt, J.H. Smet, A. Christian, F. Zha, J. Muster, B. Steffi, K. Vojislav at MPI, Stuttgart, for valuable discussions and furnishing their facilities. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by NSF Cooperative Agreement No. DMR-9527035 and by the State of Florida. One of the authors (YWP) appreciates Prof. J.R. Schrieffer for his kind arrangement to work at the NHMFL. This work was supported by STEPI under the contract no. 98-I-01-04-A-026, Ministry of Science and Technology (MOST), Korea.",

year = "1999",

month = sep,

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doi = "10.1016/S0379-6779(99)00091-0",

language = "English",

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TY - JOUR

T1 - Conductivity and magnetoresistance of polyacetylene fiber network

AU - Kim, G. T.

AU - Burghard, M.

AU - Suh, D. S.

AU - Liu, K.

AU - Park, J. G.

AU - Roth, S.

AU - Park, Y. W.

N1 - Funding Information: We would specially give our gratitudes to M. Riek, M. Schmidt, J.H. Smet, A. Christian, F. Zha, J. Muster, B. Steffi, K. Vojislav at MPI, Stuttgart, for valuable discussions and furnishing their facilities. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by NSF Cooperative Agreement No. DMR-9527035 and by the State of Florida. One of the authors (YWP) appreciates Prof. J.R. Schrieffer for his kind arrangement to work at the NHMFL. This work was supported by STEPI under the contract no. 98-I-01-04-A-026, Ministry of Science and Technology (MOST), Korea.

PY - 1999/9/15

Y1 - 1999/9/15

N2 - The four-probe conductivity and magnetoresistance (MR) in micron-scale for the iodine-doped polyacetylene (PA) fiber network were measured. A remarkably weaker temperature dependence of resistivity compared to that of the bulk PA film was observed. The transverse MR at T = 1.5 K was negative and its relative magnitude was approximately 0.1% at H = 10 T. The slow oscillatory tendency with small amplitude was suggested in MR. The results suggest the importance of contact barriers in the nanosize PA fiber network.

AB - The four-probe conductivity and magnetoresistance (MR) in micron-scale for the iodine-doped polyacetylene (PA) fiber network were measured. A remarkably weaker temperature dependence of resistivity compared to that of the bulk PA film was observed. The transverse MR at T = 1.5 K was negative and its relative magnitude was approximately 0.1% at H = 10 T. The slow oscillatory tendency with small amplitude was suggested in MR. The results suggest the importance of contact barriers in the nanosize PA fiber network.

UR - http://www.scopus.com/inward/record.url?scp=0032672314&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(99)00091-0

DO - 10.1016/S0379-6779(99)00091-0

M3 - Article

AN - SCOPUS:0032672314

SN - 0379-6779

VL - 105

SP - 207

EP - 210

JO - Synthetic Metals

JF - Synthetic Metals

IS - 3

ER -

Conductivity and magnetoresistance of polyacetylene fiber network

Abstract

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