Ferromagnetism in Ti-doped ZnO thin films

Q. Shao, C. Wang, J. A. Zapien, Chi Wah Leung, A. Ruotolo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

We report our study on the origin of ferromagnetism in Ti-doped ZnO. A series of Ti doped ZnO films with increasing concentration of Ti dopant were grown and characterized in terms of structural, electrical, and magnetic properties. We found that Ti has a low solubility in the ZnO wurtzite structure. This favors stabilization of a large number of Zn vacancies, and theoretical calculations have shown that they can carry substantial magnetic moment. A carrier mediated exchange interaction between Zn vacancies is at the origin of the surprisingly high magnetic moment we measure in this compound.
Original languageEnglish
Article number17B908
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
Publication statusPublished - 7 May 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this