Ferromagnetism in Tb doped ZnO nanocrystalline films

W. Q. Zou, C. N. Ge, G. Venkataiah, H. L. Su, H. S. Hsu, J. C.A. Huang, X. C. Liu, F. M. Zhang, Y. W. Du

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Nanocrystalline Tb-doped ZnO films have been prepared by ion-beam sputtering technique. Magnetic characterization showed that the films are ferromagnetic with Curie temperature (T C) higher than room temperature. By further treated with a rapid thermal annealing process, both the grain size and the carrier concentration of the films increase, while the saturation magnetization of the films decreases. This magnetic behavior can be hardly explained by either bound magnetic polaron model or free carrier mediation model, thus suggests that the grain boundaries play a key role for the origin of ferromagnetism in these films.

Original languageEnglish
Article number113704
JournalJournal of Applied Physics
Volume111
Issue number11
DOIs
Publication statusPublished - 2012 Jun 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Ferromagnetism in Tb doped ZnO nanocrystalline films'. Together they form a unique fingerprint.

Cite this