欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用高温高压方法将由溶胶-凝胶（Sol-gel）法制备的Co掺杂ZnO基稀磁半导体纳米颗粒置于6GPa压强和1000℃环境中处理,并研究其结构和磁学性质.XRD,XPS以及HRTEM等结构测量和分析表明,在掺杂浓度不高时,Co2＋离子被较好地掺杂到了ZnO晶格中,没有第二相或者团簇存在;而在中高浓度掺杂时,有CoO相形成.SQUID磁性测量显示,样品具有室温铁磁性.
英文摘要：
High-pressure and high-temperature are used to treat a series of Co doped ZnO samples synthesized by Sol-gel method. Structure and composition analyses suggest that CoO is formed after increasing the Co concentration under the high-pressure condition. The results of magnetism measurements by SQUID show that all the samples have room-temperature ferromagnetism and the ferromagnetism increases as the Co doping concentration increases,despite the formation of antiferromagnetic CoO under the high pressure condition. Thus,we argue that the ferromagnetism of ZnCoO is intrinsic.
同期刊论文项目
同项目期刊论文
Optical and magnetic properties of Fe-Doped GaN diluted magnetic semiconductors prepared by MOCVD me
Demonstration of GaN/InGaN light emitting diodes on (100) beta-Ga2O3 substrates by metalorganic chem
Impact of lattice strain on the phase formation, polarization and dielectric constant of PbZr1-xTixO
Schottky rectifiers fabricated on bulk GaN substrate analyzed by electron-beam induced current techn
位置：