Ferromagnetic ordering in Mn-doped ZnO nanoparticles

Xi Luo, Wai Tung Lee, Guozhong Xing, Nina Bao, Adnan Yonis, Dewei Chu, Jiunn Lee, Jun Ding, Sean Li, Jiabao Yi

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

Zn1 - xMnxO nanoparticles have been synthesized by hydrothermal technique. The doping concentration of Mn can reach up to 9 at% without precipitation or secondary phase, confirmed by electron spin resonance (ESR) and synchrotron X-ray diffraction (XRD). Room-temperature ferromagnetism is observed in the as-prepared nanoparticles. However, the room-temperature ferromagnetism disappears after post-annealing in either argon or air atmosphere, indicating the importance of post-treatment for nanostructured magnetic semiconductors.

Original languageEnglish
Article number625
JournalNanoscale Research Letters
Volume9
Issue number1
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Diluted magnetic semiconductor
  • Nanoparticles
  • Room-temperature ferromagnetism
  • ZnO

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics

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