Ferromagnetism in Ti-doped ZnO thin films

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

doi:10.1063/1.4917514

Ferromagnetism in Ti-doped ZnO thin films

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

Research output: Journal article publication › Journal article › Academic research › peer-review

26 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 language	English
Article number	17B908
Journal	Journal of Applied Physics
Volume	117
Issue number	17
DOIs	https://doi.org/10.1063/1.4917514
Publication status	Published - 7 May 2015

ASJC Scopus subject areas

General Physics and Astronomy

More information

10.1063/1.4917514

http://hdl.handle.net/10397/14151

Cite this

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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.",

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AU - Ruotolo, A.

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N2 - 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.

AB - 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.

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U2 - 10.1063/1.4917514

DO - 10.1063/1.4917514

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Ferromagnetism in Ti-doped ZnO thin films

Abstract

ASJC Scopus subject areas

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