Effect of oxygen vacancy defect on the magnetic properties of Co-doped ZnO

被引：0
作者：
翁臻臻 [1 ,2 ]
张健敏 [3 ]
黄志高 [3 ]
林文雄 [1 ]
机构：
[1] Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences
[2] College of Physics and Information Engineering,Fuzhou University
[3] School of Physics and OptoElectronics Technology,Fujian Normal University
来源：
Chinese Physics B | 2011年 / 02期
基金：
中国国家自然科学基金;
关键词：
Co-doped ZnO; oxygen vacancy; ferromagnetism;
D O I：
暂无
中图分类号：
O472.5 [];
学科分类号：
070205 ; 080501 ; 0809 ; 080903 ;
摘要：
The influence of oxygen vacancy on the magnetism of Co-doped ZnO has been investigated by the first-principles calculations.It is suggested that oxygen vacancy and its location play crucial roles on the magnetic properties of Co-doped ZnO.The exchange coupling mechanism should account for the magnetism in Co-doped ZnO with oxygen vacancy and the oxygen vacancy is likely to be close to the Co atom.The oxygen vacancy (doping electrons) might be available for carrier mediation but is localized with a certain length and can strengthen the ferromagnetic exchange interaction between Co atoms.
引用
收藏
页码：426 / 431
页数：6
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