Research Progress of Uniaxial Hexagonal Strontium Ferrites Nanoscale Particles

摘要：

The research status of crystal structure, magnetic properties and temperature characterisitcs of transition metal (TM) cations subtituted SrFe12O19 nanoparticles is reported in this paper. Recently, the studies on TM and diamagnetic ions substitution focus mostly on ZnTi, CoTi, Znlr, LnZn, LnNb and ZnCr, etc.. The experiment results show that it is very important to control heat treatment temperature in the starting solution of SrFe12O19 to synthesize nanoscale particles and increase saturation magnetization with a small doping content,for example, Ms of SrZn0.7Nb0.3xFe12-xO19 reaches a maximum of 73.3 ernu/g from 64 emu/g of SrFe12O19 when x=0～0.8. Additional, doped strontium hexaferrite particles have a very small positive temperature coefficient of coercivity and good temperature stability under room temperature. These features are suitable to applly it for magnetic recording.

关键词： hexaferrite structure magnetic property temperature characterization nanoparticle

作者: Q.Q.Fang W.N.Wang Y.Li Y.M.Liu Q.R.Lv S.N.Wang Q.S.Yan

作者单位: School of Physics and Material Science,Anhui University,Anhui Key Laboratory of Information Function Materials and Devices,Hefei 230039,Anhui China

会议类型: 国际会议

会议名称: The 10th International Conference on Ferrites(2008中国国际铁氧体研讨会)

会议地点: 成都

会议语种:英文

页码: 20-22

在线出版日期: 2008-10-10（万方平台首次上网日期，不代表论文的发表时间）