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Electronic structures and ferromagnetism in transition metals codoped ZnO
- Publication Year :
- 2003
-
Abstract
- We have investigated electronic structures and magnetic properties of potential ZnO based diluted magnetic semiconductors: (Fe, Co) and (Fe, Cu) codoped ZnO. The origins of ferromagnetism are shown to be different between two. (Fe, Co) codoped ZnO does not have a tendency of Fe-O-Co ferromagnetic cluster formation, and so the double exchange mechanism will not be effective. In contrast, (Fe, Cu) codoped ZnO has a tendency of the Fe-O-Cu ferromagnetic cluster formation with the charge transfer between Fe and Cu, which would lead to the ferromagnetism through the double-exchange mechanism. The ferromagnetic and nearly half-metallic ground state is obtained for (Fe, Cu) codoped ZnO.<br />6 pages, 6 figures
- Subjects :
- Condensed Matter::Materials Science
Condensed Matter - Materials Science
Quantitative Biology::Neurons and Cognition
Condensed Matter::Other
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
Condensed Matter::Strongly Correlated Electrons
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....420c3083f6e6c5dc5c5f8ce998b39ce1