Comparative study of room-temperature ferromagnetism in Cu-doped ZnO nanowires enhanced by structural inhomogeneity

被引：223

作者：

Xing, Guo Zhong ^{[1
]}

Yi, Jia Bao ^{[2
]}

Tao, Jun Guang ^{[1
]}

Liu, Tao ^{[3
]}

Wong, Lai Mun ^{[4
]}

Zhang, Zhou ^{[1
]}

Li, Gong Ping ^{[1
]}

Wang, Shi Jie ^{[4
]}

Ding, Jun ^{[2
]}

Sum, Tze Chien ^{[1
]}

Huan, Cheng Hon Alfred ^{[1
]}

Wu, Tom ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore

[2] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 119260, Singapore

[3] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore

[4] Inst Mat Res & Engn, Singapore 11760, Singapore

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 18期

关键词：

D O I：

10.1002/adma.200703149

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cu-doped ZnO nanowires are prepared using two different approaches, and a comparative study of their magnetic properties is carried out. Compared with direct growth using a conventional vapor transport method, annealing a ZnO/Cu core/shell structure leads to significantly enhanced room-temperature ferromagnetism (see figure). Structural inhomogeneity boosts the ferromagnetism by promoting the formation of bound magnetic polarons.

引用

页码：3521 / +

页数：8

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