水热反应时间对Zn_(1-x)Ni_xO稀磁半导体结构与磁性的影响  

Effect of Hydrothermal Reaction Time on the Structure and Magnetic Properties of Zn_(1-x)Ni_xO DMSs

作　　者：李钰梅[1,2] 邢光建[2] 胡昕[2] 王怡[3] 武光明[2] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]北京石油化工学院材料科学与工程系,北京102617 [3]北京石油化工学院数理系,北京102617

出　　处：《材料导报（纳米与新材料专辑）》2010年第2期401-403,共3页

基　　金：北京市教委面上项目(KM200910017004)

摘　　要：利用水热法制备了不同Ni含量的ZnO(Zn_(1-x)Ni_xO)稀磁半导体材料,通过XRD、FESEM和VSM对产物的结构、形貌及磁性进行了分析与测试,探讨了反应时间对Zn_(1-x)Ni_xO材料结构及磁性的影响。结果表明,反应时间显著影响Zn_(1-x)Ni_xO的结构与磁性,随着反应时间的延长,样品的结晶质量下降,形貌由六方棒状结构转变为片状结构,同时磁性减弱。Zn1-xNixO diluted magnetic semiconductors with different Ni content are prepared with hydrotherreal method. The structure, morphologies and magnetic properties of the products are characterized by XRD, FESEM and VSM technologies. The effect of reaction time on the structure and magnetic properties of Zn1-xNixO is investigated. The results show that the reaction time has great effect on the structure and magnetic properties of the final products. With increasing of the reaction time, the products show weaker crystallinity and become laminar structure from hexagon rod structure. Room temperature ferromagnetism is observed for the Zn1-xNixO products and magnetic properties become weaker with prolonging the reaction time.

关 键 词：Zn1-xNixO稀磁半导体 水热法 反应时间 磁性 结构 

分 类 号：TN304[电子电信—物理电子学]