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 | |
| Publication status | Published - 7 May 2015 |
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Q. Shao, C. Wang, J. A. Zapien, C. W. Leung, and A. Ruotolo , "Ferromagnetism in Ti-doped ZnO thin films", Journal of Applied Physics 117, 17B908 (2015) and may be found at https://doi.org/10.1063/1.4917514.
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