Electron spin resonance study of ferromagnetic graphite with orientational disorder

Dowan Kim, Kyu Won Lee, Cheol Eui Lee

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1 Citation (Scopus)

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.

Original languageEnglish
Pages (from-to)5-7
Number of pages3
JournalSolid State Communications
Volume160
DOIs
Publication statusPublished - 2013 Apr

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRL Program 2012-0006259 and No. 20100-029418 ). The measurements at the Korean Basic Science Institute are acknowledged.

Keywords

  • A. Graphite with disorder
  • B. Proton-irradiation
  • D. Ferromagnetism
  • E. Electron spin resonance

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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