Abstract
Co0.2Mg x Zn0.8-x O films prepared with different molar ratio of magnesium acetate to zinc acetate were deposited on substrates by the sol-gel technique. X-ray diffraction, photoluminescence (PL) and ferromagnetism measurements were used to characterize the Co0.2Mg x Zn0.8-x O diluted magnetic semiconductors. The acceptor-like defects were determined in the PL band and the intensity of the acceptor-related PL increased with increasing Mg concentration. Therefore, an increase in the number of the acceptor-like defects (zinc vacancies especially) in the Co0.2Mg x Zn0.8-x O film may lead to the enhancement of the magnetic properties. It is worth noting that changes in Mg concentration and the number of the acceptor-like defects are important issues for producing strong ferromagnetism Co0.2Mg x Zn 0.8-x O films prepared by the sol-gel method.
Original language | English |
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Pages (from-to) | 109-112 |
Number of pages | 4 |
Journal | Journal of Sol-Gel Science and Technology |
Volume | 52 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2009 Oct 1 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Chemistry(all)
- Biomaterials
- Condensed Matter Physics
- Materials Chemistry