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Room-temperature ferromagnetism in Fe-doped, Fe- and Cu-codoped ZnO diluted magnetic semiconductor |
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| Authors: | Hua-Wei Zhang Zhi-Ren Wei Zhi-Qiang Li |
| Affiliation: | a Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China b Graduate School of the Chinese Academy of Sciences, Beijing 100049, China c College of Physics Science and Technology, Hebei University, Baoding 071002, China |
| Abstract: | Magnetic properties of Zn0.975Fe0.025O and Zn0.97Fe0.025Cu0.005O crystallites fabricated by hydrothermal method are investigated. X-ray diffraction and Raman measurements indicate that the samples have pure ZnO wurtzite structure and Fe2+ ions have substituted Zn2+ sites. Magnetic measurements indicate that Fe doping can induce room-temperature ferromagnetism, while codoping with Cu might enhance the magnetic moment but reduce the Curie temperature in ZnO. |
| Keywords: | 75 50 Pp |
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