Fixed-spin-induced ESR linewidth and polaron mobility in conducting polymers

E. Houzé , M. Nechtschein , Adam Proń

Abstract

The relationship between the polaron mobility and the fixed-spin-induced ESR linewidth is verified experimentally in HCl-doped polyaniline in which a controllable amount of Fe3+ paramagnetic ions have been incorporated. The polaron mobility has been varied by (a) decreasing the temperature, and (b) aging of the material. In both cases, the line broadening has been compared to the dc conductivity, and to the intrachain spin-diffusion rate obtained from NMR measurements. The line broadening appears to be proportional to the spin-diffusion rate. Implications of this line-broadening mechanism are discussed, in particular concerning the temperature dependence of the ESR linewidth.
Author E. Houzé - [CEA Grenoble]
E. Houzé,,
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, M. Nechtschein - [CEA Grenoble]
M. Nechtschein,,
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, Adam Proń (FC / CPCT)
Adam Proń,,
- Chair Of Polymer Chemistry And Technology
Journal seriesPhysical Review B, ISSN 1098-0121
Issue year1997
Vol56
No19
Pages12263-12267
ASJC Classification3104 Condensed Matter Physics; 2504 Electronic, Optical and Magnetic Materials
DOIDOI:10.1103/PhysRevB.56.12263
URL http://link.aps.org/doi/10.1103/PhysRevB.56.12263
Score (nominal)35
Score sourcejournalList
Publication indicators Scopus Citations = 14; WoS Citations = 14; GS Citations = 19.0; Scopus SNIP (Source Normalised Impact per Paper): 1999 = 1.541; WoS Impact Factor: 2006 = 3.107 (2) - 2007=3.124 (5)
Citation count*19 (2020-09-15)
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