Room temperature ferromagnetism in hydrothermally grown Ni and Cu co-doped ZnO nanorods

被引：39

作者：

Tang, Guodong ^{[1
]}

Shi, Xiaoqin ^{[1
]}

Huo, Chao ^{[3
]}

Wang, Zhihe ^{[2
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[3] Natl Inst Metrol China, Beijing 100013, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ZnO; Diluted magnetic semiconductors; Ferromagnetism; Nanorods; MAGNETIC-PROPERTIES; MN; SEMICONDUCTORS; RODS;

D O I：

10.1016/j.ceramint.2012.11.073

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The fabrication and magnetic characteristics of Ni and Cu co-doped ZnO nanorods are reported. The Ni and Cu co-doped ZnO nanorods are synthesized by a facile hydrothermal method. Structural characterizations reveal that Ni and Cu ions enter into ZnO lattices without any secondary phases. SEM images show that they are regular nanorods. Magnetic measurements indicate that the obtained rod arrays exhibit room-temperature ferromagnetic behaviors. The exchange interaction between free delocalized carriers (holes from valence band) and the localized d spins of Ni and Cu ions is considered as the cause of the room-temperature ferromagnetism. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：4825 / 4829

页数：5

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