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Electron spin resonance study of ferromagnetic graphite with orientational disorder
- Authors
- Kim, Dowan; Lee, Kyu Won; Lee, Cheol Eui
- Issue Date
- 4월-2013
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Graphite with disorder; Proton-irradiation; Ferromagnetism; Electron spin resonance
- Citation
- SOLID STATE COMMUNICATIONS, v.160, pp.5 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- SOLID STATE COMMUNICATIONS
- Volume
- 160
- Start Page
- 5
- End Page
- 7
- ISSN
- 0038-1098
- Abstract
- We have investigated highly oriented pyrolytic graphite (HOPG) with a mosaic spread (ZYH) by employing electron spin resonance (ESR) measurements in comparison to high-grade virgin HOPG (ZYA) and proton-irradiated ZYA (Irr-ZYA). In spite of ferromagnetism found in ZYH as in Irr-ZYA, the ESR spectra in ZYH resemble those in ZYA rather than those in Irr-ZYA, only giving a conduction electron signal. Distinct characteristics of the conduction electron signals were investigated, the g-values and the linewidths being interpreted in terms of the carrier density and the magnetic susceptibility in relation to defects in the systems. (c) 2013 Elsevier Ltd. All rights reserved.
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