Microstructure, Magnetic and Magneto-optical Propertiesof Co-Mn Ferrite Nanocrystalline Films

为了改善磁光材料CoFe2O4的磁学特性,本文利用改进的溶胶-凝胶法在单晶硅衬底上制备了不同掺杂量的CoFe2-xMnxO4(x=0～2.0)纳米晶薄膜系列样品.并对其结构、磁性及磁光效应进行了研究.结果表明,Mn3+的掺入可以有效地控制和降低CoFe2O4的居里温度,并可显著地增强薄膜的磁光效应.The sol - gel synthesis of CoFe2-xMnxO4(x = 0 similar to 2.0) nanocrystalline films has been accomplished on monocrystalline silicon substrates and the influence of Mn3+ on structure, magnetic and magneto optical (MO) properties of the resultant ferrite examined. The results reveal that Mn can effectively lower the Curie temperature of Co ferrite and the magneto - optical properties is enhanced by Mn3+ doping.国家自然科学基金; 国家研究发展基金; 高等学校博士学科点专项科研项目http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000168878100013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701SCI(E)中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)24528-5325