A key to room-temperature ferromagnetism in Fe-doped ZnO: Cu
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- 25 November 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (22), 4212-4214
- https://doi.org/10.1063/1.1525885
Abstract
Successful synthesis of room-temperature ferromagneticsemiconductors, Zn 1−x Fe x O , is reported. The essential ingredient in achieving room-temperature ferromagnetism in bulk Zn 1−x Fe x O was found to be additional Cudoping. A transition temperature as high as 550 K was obtained in Zn 0.94 Fe 0.05 Cu 0.01 O ; the saturation magnetization at room temperature reached a value of 0.75μ B per Fe. A large magnetoresistance was also observed below 100 K.Keywords
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