ESR studies of AuCl3 doped polyacetylene: metallic behaviour at low temperatures

A. Bartl; L. Dunsch; E. S. Choi; D. S. Suh; Y. W. Park

doi:10.1016/S0379-6779(98)01208-9

ESR studies of AuCl₃ doped polyacetylene: metallic behaviour at low temperatures

A. Bartl, L. Dunsch, E. S. Choi, D. S. Suh, Y. W. Park

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Doped polyacetylene (PA) samples stored under vacuum at room temperature in ESR sample tubes reach after three months nearly a steady state in the temperature dependent intensity and linewidth behaviour. The ESR spectra show two lines with an equal g-factor. In particular the linewidth of the small line demonstrates a remarkable property. The temperature dependence of the linewidth indicates a maximum at 30 K, and has a value of about 0.17 mT above this temperature in the whole investigated region up to 300 K. The ESR data are discussed in a two spin model of delocalized states at the PA chain and fixed spins in the dopants. The interpretation underlines the metallic behaviour of the doped PA at low temperatures.

Original language	English
Pages (from-to)	465-466
Number of pages	2
Journal	Synthetic Metals
Volume	101
Issue number	1
DOIs	https://doi.org/10.1016/S0379-6779(98)01208-9
State	Published - May 1999
Event	Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: 12 Jul 1998 → 18 Jul 1998

Bibliographical note

Funding Information:
This work was supportedb y the Korea Science and Engineering Foundation (KOSEF) and the Ministry of Education (MOE), Korea. The experimental help of R. Schandert is greatful acknowledged.

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10.1016/S0379-6779(98)01208-9

Cite this

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title = "ESR studies of AuCl3 doped polyacetylene: metallic behaviour at low temperatures",

abstract = "Doped polyacetylene (PA) samples stored under vacuum at room temperature in ESR sample tubes reach after three months nearly a steady state in the temperature dependent intensity and linewidth behaviour. The ESR spectra show two lines with an equal g-factor. In particular the linewidth of the small line demonstrates a remarkable property. The temperature dependence of the linewidth indicates a maximum at 30 K, and has a value of about 0.17 mT above this temperature in the whole investigated region up to 300 K. The ESR data are discussed in a two spin model of delocalized states at the PA chain and fixed spins in the dopants. The interpretation underlines the metallic behaviour of the doped PA at low temperatures.",

author = "A. Bartl and L. Dunsch and Choi, {E. S.} and Suh, {D. S.} and Park, {Y. W.}",

note = "Funding Information: This work was supportedb y the Korea Science and Engineering Foundation (KOSEF) and the Ministry of Education (MOE), Korea. The experimental help of R. Schandert is greatful acknowledged.; Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) ; Conference date: 12-07-1998 Through 18-07-1998",

year = "1999",

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doi = "10.1016/S0379-6779(98)01208-9",

language = "English",

volume = "101",

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journal = "Synthetic Metals",

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publisher = "Elsevier BV",

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TY - JOUR

T1 - ESR studies of AuCl3 doped polyacetylene

T2 - Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98)

AU - Bartl, A.

AU - Dunsch, L.

AU - Choi, E. S.

AU - Suh, D. S.

AU - Park, Y. W.

N1 - Funding Information: This work was supportedb y the Korea Science and Engineering Foundation (KOSEF) and the Ministry of Education (MOE), Korea. The experimental help of R. Schandert is greatful acknowledged.

PY - 1999/5

Y1 - 1999/5

N2 - Doped polyacetylene (PA) samples stored under vacuum at room temperature in ESR sample tubes reach after three months nearly a steady state in the temperature dependent intensity and linewidth behaviour. The ESR spectra show two lines with an equal g-factor. In particular the linewidth of the small line demonstrates a remarkable property. The temperature dependence of the linewidth indicates a maximum at 30 K, and has a value of about 0.17 mT above this temperature in the whole investigated region up to 300 K. The ESR data are discussed in a two spin model of delocalized states at the PA chain and fixed spins in the dopants. The interpretation underlines the metallic behaviour of the doped PA at low temperatures.

AB - Doped polyacetylene (PA) samples stored under vacuum at room temperature in ESR sample tubes reach after three months nearly a steady state in the temperature dependent intensity and linewidth behaviour. The ESR spectra show two lines with an equal g-factor. In particular the linewidth of the small line demonstrates a remarkable property. The temperature dependence of the linewidth indicates a maximum at 30 K, and has a value of about 0.17 mT above this temperature in the whole investigated region up to 300 K. The ESR data are discussed in a two spin model of delocalized states at the PA chain and fixed spins in the dopants. The interpretation underlines the metallic behaviour of the doped PA at low temperatures.

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U2 - 10.1016/S0379-6779(98)01208-9

DO - 10.1016/S0379-6779(98)01208-9

M3 - Conference article

AN - SCOPUS:0032590766

SN - 0379-6779

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SP - 465

EP - 466

JO - Synthetic Metals

JF - Synthetic Metals

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Y2 - 12 July 1998 through 18 July 1998

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