Ferromagnetic anisotropy of carbon-doped ZnO nanoneedles fabricated by ion beam technique

C. S. Wei, Shu Ping Lau, M. Tanemura, M. Subramanian, Y. Akaike

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)

Abstract

Carbon-doped ZnO (ZnO:C) nanoneedles were fabricated using ion beam irradiation with a simultaneous supply of carbon at room temperature. The structure and the magnetic properties of the ZnO:C nanoneedles were investigated. Hysteresis loops and zero-field cooling (ZFC) and field cooling (FC) curves demonstrated the ferromagnetic properties of the ZnO:C nanoneedles. The Curie temperature of the ZnO:C is above 330 K. The ferromagnetic anisotropy with an easy axis perpendicular to the shape axis of the ZnO:C nanoneedles was observed due to the dipole-dipole magnetic interaction amongst nanoneedles.
Original languageEnglish
Pages (from-to)5486-5489
Number of pages4
JournalApplied Surface Science
Volume258
Issue number14
DOIs
Publication statusPublished - 1 May 2012

Keywords

  • Ferromagnetic anisotropy
  • Ferromagnetic properties
  • Ion beam irradiation
  • ZnO:C nanoneedles

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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