Ferromagnetism in ZnO codoped with transition metals: Zn1-x(FeCo)(x)O and Zn1-x(FeCu)(x)O
SCIE
SCOPUS
- Title
- Ferromagnetism in ZnO codoped with transition metals: Zn1-x(FeCo)(x)O and Zn1-x(FeCu)(x)O
- Authors
- Park, MS; Min, BI
- Date Issued
- 2003-12
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- We have investigated electronic structures and magnetic properties of ZnO-based potential diluted magnetic semiconductors codoped with transition metals: Zn1-x(FeCo)(x)O and Zn1-x(FeCu)(x)O. We have found that the origin of the observed ferromagnetism in Zn1-x(FeCo)(x)O would be different from that in Zn1-x(FeCu)(x)O. Zn1-x(FeCo)(x)O does not have a tendency to form the Fe-O-Co ferromagnetic cluster, and so the double-exchange mechanism will not be effective. In contrast, Zn1-x(FeCu)(x)O has a tendency to form the Fe-O-Cu ferromagnetic cluster with the charge transfer between Fe and Cu, which would lead to the ferromagnetism via a type of the double-exchange mechanism. The ferromagnetic and nearly half-metallic ground state is obtained for Zn1-x(FeCu)(x)O.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12102
- DOI
- 10.1103/PhysRevB.68.224436
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 68, no. 22, 2003-12
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