Structure and magnetic properties of Mn-doped ZnO semiconductors

被引：33
|
作者：
Yang, J. H. [1 ]
Zhao, L. Y. [1 ]
Zhang, Y. J. [1 ]
Wang, Y. X. [1 ]
Liu, H. L. [1 ]
Wei, M. B. [1 ]
机构：
[1] Jilin Normal Univ, Phys Coll, Changchun 136000, Jilin Province, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2007年 / 143卷 / 11-12期
关键词：
semiconductors; chemical synthesis; exchange and superexchange;
D O I：
10.1016/j.ssc.2007.06.033
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Mn-doped zinc oxide (Zn1-xMnx,O) powders were synthesized from Zn nitrate and Mn nitrate reduced with citrate, with x varying from 0.01 to 0.08. X-ray diffraction (XRD) and high resolution transmission electron microscope (HRTEM) analysis revealed that Mn ions were substitutionally well incorporated into the crystal lattice of ZnO for all samples. The magnetization follows the Curie-Weiss law at high temperature and the samples are still paramagnetic down to 5 K. The negative value of dominant exchange integral between the nearest magnetic ions indicates antiferromagnetic interaction between Mn ions in the Zn1-x,Mn-x,O. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：566 / 569
页数：4
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