| Original Articles |
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Ferromagnetism from Co-Doped ZnO Nanocantilevers above Room Temperature |
ZHOU Shao-Min, WANG Peng, LI Sheng, ZHANG Bin, GONG He-Chun, DU
Zu-Liang |
| Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004 |
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| Cite this article: |
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ZHOU Shao-Min, WANG Peng, LI Sheng et al 2008 Chin. Phys. Lett. 25 4446-4448 |
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Abstract At low temperature (400°C), chemical vapour deposition (CVD) is employed to make comb-like Co-doped ZnO nanocantilever arrays (NAs). The magnetization curves of the as-synthesized Co-doped ZnO NAs indicate the existence of above-room-temperature ferromagnetism (ARTFM) (Curie temperature, Tc>300K) whereas undoped ZnO NAs does not. The corresponding ferromagnetic source mechanism is discussed, in which defects play an important role due to the strong green light emission.
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| Keywords:
81.05.Dz
81.16.Rf
75.75.+a
75.50.Pp
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Received: 15 June 2008
Published: 27 November 2008
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