Journal
APPLIED PHYSICS LETTERS
Volume 81, Issue 22, Pages 4212-4214Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1525885
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Successful synthesis of room-temperature ferromagnetic semiconductors, Zn1-xFexO, is reported. The essential ingredient in achieving room-temperature ferromagnetism in bulk Zn1-xFexO was found to be additional Cu doping. A transition temperature as high as 550 K was obtained in Zn0.94Fe0.05Cu0.01O; the saturation magnetization at room temperature reached a value of 0.75mu(B) per Fe. A large magnetoresistance was also observed below 100 K. (C) 2002 American Institute of Physics.
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