Room-temperature ferromagnetism in well-aligned Zn1-xCoxO nanorods

被引:154
作者
Wu, JJ [1 ]
Liu, SC [1 ]
Yang, MH [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Chem Engn, Tainan 701, Taiwan
关键词
D O I
10.1063/1.1779958
中图分类号
O59 [应用物理学];
学科分类号
摘要
Diluted magnetic semiconductor Zn1-xCoxO nanorods with a Curie temperature higher than 350 K have been synthesized by in situ doping of Co in ZnO nanorods using a simple thermal chemical vapor deposition method. Structural analyses indicated that the nanorod possesses the single-crystalline wurtzite structure and there is no segregated cluster of impurity phase appearing throughout the nanorod. The transparence of the Zn1-xCoxO nanorods in the visible region has been examined by UV-visible absorption. The fundamental absorptions of the Zn1-xCoxO nanorods estimated from the absorption spectra do not reveal pronounced difference from that of pure ZnO nanorods. (C) 2004 American Institute of Physics.
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页码:1027 / 1029
页数:3
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