Room temperature ferromagnetism in Mn+-implanted Si nanowires

被引：99
|
作者：
Wu, H. W. [1 ]
Tsai, C. J. [1 ]
Chen, L. J. [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 04期
关键词：
D O I：
10.1063/1.2432273
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Room temperature ferromagnetism of Mn+-implanted Si nanowires (NWs) has been discovered. The saturation magnetization was found to increase with the Mn concentration. Healing the damages in crystallinity at 600 degrees C led to an increase in magnetization, while the ferromagnetism disappeared upon annealing at 800 degrees C as Mn atoms segregated to the surface of NWs. The results indicate that Mn+-implanted Si NWs are potentially useful for nanoscale spintronics applications. (c) 2007 American Institute of Physics.
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