The magnetic and hyperfine properties of iron in silicon carbide

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The magnetic and hyperfine properties of iron impurities in 3C- and 6H- silicon-carbide are calculated using the abinitio method of full-potential linear-augmented-plane-waves. The iron atoms are introduced at substitutional carbon, FeC, and silicon, FeSi, sites as well as at the tetrahedral interstitial sites with four nearest neighbours carbon atoms, FeI(C), and four nearest neighbours silicon atoms, FeI(Si). The effect of introducing vacancies at the neighbours of these sites is also studied. Fe atoms with complete neighbors substituted at Si or C sites are found to be nonmagnetic, while Fe atoms at interstitial sites are magnetic. Introduction of a vacancy at a neighboring site reverse the picture.

Original languageEnglish
Pages (from-to)281-287
Number of pages7
JournalHyperfine Interactions
Volume226
Issue number1-3
DOIs
Publication statusPublished - 2014

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silicon carbides
Iron
magnetic properties
iron
Atoms
atoms
Silicon
Vacancies
interstitials
Carbon
carbon
silicon
plane waves
silicon carbide
Impurities
impurities

Keywords

  • Hyperfine field
  • Isomer shift
  • Magnetic moment
  • Vacancies

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

The magnetic and hyperfine properties of iron in silicon carbide. / Elzain, M.; Al-Harthi, S. H.; Gismelseed, A.; Al-Rawas, A.; Yousif, A.; Widatallah, H.; Al-Barwani, M.

In: Hyperfine Interactions, Vol. 226, No. 1-3, 2014, p. 281-287.

Research output: Contribution to journalArticle

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AU - Elzain, M.

AU - Al-Harthi, S. H.

AU - Gismelseed, A.

AU - Al-Rawas, A.

AU - Yousif, A.

AU - Widatallah, H.

AU - Al-Barwani, M.

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AB - The magnetic and hyperfine properties of iron impurities in 3C- and 6H- silicon-carbide are calculated using the abinitio method of full-potential linear-augmented-plane-waves. The iron atoms are introduced at substitutional carbon, FeC, and silicon, FeSi, sites as well as at the tetrahedral interstitial sites with four nearest neighbours carbon atoms, FeI(C), and four nearest neighbours silicon atoms, FeI(Si). The effect of introducing vacancies at the neighbours of these sites is also studied. Fe atoms with complete neighbors substituted at Si or C sites are found to be nonmagnetic, while Fe atoms at interstitial sites are magnetic. Introduction of a vacancy at a neighboring site reverse the picture.

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