Electron spin resonance absorption in organic metal polyaniline and its blend with PMMA

Authors
Srinivasan, D Natarajan, TS Rangarajan, G Bhat, SV Wessling, B
Citation
D. Srinivasan et al., Electron spin resonance absorption in organic metal polyaniline and its blend with PMMA, SOL ST COMM, 110(9), 1999, pp. 503-508
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
110
Issue
9
Year of publication
1999
Pages
503 - 508
Database
ISI
SICI code
0038-1098(1999)110:9<503:ESRAIO>2.0.ZU;2-Z
Abstract
The electron spin resonance absorption in the synthetic metal polyaniline ( PANI) doped with PTSA and its blend with poly(methylmethacrylate) (PMMA) is investigated in the temperature range between 4.2 and 300 K. The observed line shape follows Dyson's theory for a thick metallic plate with slowly di ffusing magnetic dipoles. At low temperatures the line shape become symmetr ic and Lorentzian when the sample dimensions are small in comparison with t he skin depth. The temperature dependence of electron spin relaxation time is discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.