Experimental and theoretical studies on the magnetic property of carbon-doped ZnO

X. J. Ye, C. S. Liu, W. Zhong*, H. A. Song, Chak Tong AU, Y. W. Du

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Intrinsic room-temperature ferromagnetism was detected over n-type carbon-doped ZnO prepared through solid-state reaction. Our results of first-principle calculations based on density functional theory revealed that the CZn4O12 unit is the origin of magnetic moment in the carbon-doped ZnO system. The carbon component has a significant contribution to the net magnetic moment, and any oxygen vacancy present in CZn4O12 has a negative effect on the magnetic properties of the system. Moreover, both antiferromagnetic and ferromagnetic interactions are predicted among carbon atoms located at different C{single bond}C distances. The result suggests that the defect density influenced by the distribution of carbon has a significant effect on the magnetic properties of the carbon-doped ZnO system. Crown

Original languageEnglish
Pages (from-to)496-500
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume374
Issue number3
DOIs
Publication statusPublished - 4 Jan 2010

Scopus Subject Areas

  • Physics and Astronomy(all)

User-Defined Keywords

  • Carbon-doped ZnO
  • Ferromagnetism
  • First-principle calculation

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