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High-temperature ferromagnetism in cobalt-doped ZnO single-crystalline nanorods |
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| Authors: | Ping Che Weibin Liu Lin Guo Lin He Chinping Chen |
| Affiliation: | 1. School of Applied Science, University of Science and Technology Beijing, Beijing 100083, China;2. School of Science, University of Aeronautics and Astronautics, Beijing 100083, China;3. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;4. Department of Physics, Peking University, Beijing 100871, China |
| Abstract: | Co-doped ZnO single-crystalline nanorods with 80–100 nm in diameter and 1.5–2 μm in length have been prepared in a simple solution route. X-ray diffraction data and selected area electron diffraction pattern of the diluted magnetic semiconductor nanorods confirm the single crystallinity of Zn1−xCoxO solid solution without impurities of metallic Co or other phases. Magnetic results show that the Zn0.95Co0.05O nanorods exhibit a ferromagnetic characteristic with Curie temperature higher than 380 K. The high-temperature ferromagnetic properties allow this Zn1−xCoxO nanorods potential applications in future spintronic devices. |
| Keywords: | High temperature ferromagnetism ZnO DMS |
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