Chin. Phys. Lett.  2008, Vol. 25 Issue (12): 4446-4448    DOI:
Original Articles |
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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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.
Keywords: 81.05.Dz      81.16.Rf      75.75.+a      75.50.Pp     
Received: 15 June 2008      Published: 27 November 2008
PACS:  81.05.Dz (II-VI semiconductors)  
  81.16.Rf (Micro- and nanoscale pattern formation)  
  75.75.+a  
  75.50.Pp (Magnetic semiconductors)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I12/04446
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Articles by authors
ZHOU Shao-Min
WANG Peng
LI Sheng
ZHANG Bin
GONG He-Chun
DUZu-Liang
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