物理学报2012，Vol.61Issue(15)：460-467,8.
固相反应法制备的COxZn1-xO磁性能的研究
Magnetic properties of CoxZn1-xO by solid-state reaction
摘要
Abstract
Co doped ZnO powders and tablets are synthesized by the solid-state reaction.The X-ray diffraction experimental results indicate that Zn2＋ ions are substituted by Co2＋ ions.All samples are paramagnetic at room temperature.Using density functional theory （DFT＋U） method,the calculated results indicate that the antiferromagnetic ground state of Co2Zn14O16 system is more stable.By calculating the electronic transfers of Co and O atoms,it is indicated that the mechanism of the magnetism tends to the indirect exchange model of Co2＋-O2-Co2＋ bonding in CoZnO system.The direct exchange formula Jpd of Anderson model is modified.Two possible ways to achieve the intrinsic ferromagnetic oxide semiconductor are putted forward.关键词
CoZnO/固相反应/顺磁性/间接交换作用Key words
CoZnO/solid state reaction/paramagnetism/indirect exchange分类
化学化工引用本文复制引用
王锋,王月燕,黄伟伟,张小婷,李珊瑜..固相反应法制备的COxZn1-xO磁性能的研究[J].物理学报,2012,61(15):460-467,8.基金项目
福建省自然科学基金 （）
泉州市科技项目计划 （）
福建省高校服务海西建设重点项目（批准号：A100）资助的课题 （）
