The magnetic mechanism of Zn0.93Co0.07O thin films

Xiaojuan Ye, Denglu Hou, Wei Zhong*, Chak Tong AU, Youwei Du

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Zn0.93Co0.07O thin films infiltrated with nitrogen and aluminum were prepared by means of magneton sputtering. The structural and magnetic properties of the films were studied systematically. The materials were single phase (wurtzite structure) with surfaces showing signs of homogeneous growth. The films were ferromagnetic at room temperature, and magnetic domains could be clearly observed on the surfaces. In the case of Al infiltration, saturated magnetization increased with Al concentration increasing; whereas in the case of N infiltration, saturated magnetization decreased with the increase in N concentration. The results show that ferromagnetic interactions in Co-doped ZnO diluted magnetic semiconductor may be transferred by electrons.

Original languageEnglish
Pages (from-to)21-25
Number of pages5
JournalScience China: Physics, Mechanics and Astronomy
Volume52
Issue number1
DOIs
Publication statusPublished - Jan 2009

Scopus Subject Areas

  • Physics and Astronomy(all)

User-Defined Keywords

  • Ferromagnetism
  • Thin film
  • ZnO-based diluted magnetic semiconductor

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