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Applied Surface Science
Year: 2009  |  Volume: 255  |  Issue: 6  |  Page No.: 3639 - 3641

Cu+-codoping inducing the room-temperature magnetism and p-type conductivity of ZnCoO diluted magnetic semiconductor

P. Cao, D.X. Zhao, D.Z. Shen, J.Y. Zhang, Z.Z. Zhang and Y. Bai    

Abstract: Successful synthesis of room-temperature ferromagnetic semiconductors, Cu-codoped ZnCoO films are obtained by sol–gel method. It is found that the essential ingredient in achieving room-temperature ferromagnetism is Cu-codoping. By Hall-effect measurement a p-type conductivity was observed for the Cu-codoped films, the hole concentration increases with the increase in Cu concentration. XPS result confirmed Cu ions are univalent in the films, which induced the room-temperature ferromagnetism.

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