Manganese ferrite nanoparticles with different concentrations:Preparation and magnetism
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2018年第5期
论文作者：Zheng Chen Xiao Sun Zongling Ding Yongqing Ma
文章页码：842 - 847
摘 要：Mn Fe2O4nanoparticles were synthesized by thermal decomposition of a metal–organic salt in organic solvent with a high boiling point.Some nanoparticles exhibited the triangular shape which has not been observed before as far as we know,while some nanoparticles formed the aggregates with different sizes and shapes.The strength of interparticle dipolar interaction was changed by diluting Mn Fe2O4nanoparticles in the Si O2matrix with different concentrations.The strong dipolar interaction has been suggested to enhance the blocking temperature（TB）and suppress the remanence（Mr）to saturation（Ms）magnetization ratio（Mr/Ms）for the spherical-like cobalt ferrite nanoparticles in many previous reports.However,Mr/Msand TBof Mn Fe2O4nanoparticles reported herein mainly depend on the size and shape of the nanoparticles and their aggregates.
Zheng Chen，Xiao Sun，Zongling Ding，Yongqing Ma
School of Physics and Materials Science,Anhui University
摘 要：Mn Fe2O4nanoparticles were synthesized by thermal decomposition of a metal–organic salt in organic solvent with a high boiling point.Some nanoparticles exhibited the triangular shape which has not been observed before as far as we know,while some nanoparticles formed the aggregates with different sizes and shapes.The strength of interparticle dipolar interaction was changed by diluting Mn Fe2O4nanoparticles in the Si O2matrix with different concentrations.The strong dipolar interaction has been suggested to enhance the blocking temperature（TB）and suppress the remanence（Mr）to saturation（Ms）magnetization ratio（Mr/Ms）for the spherical-like cobalt ferrite nanoparticles in many previous reports.However,Mr/Msand TBof Mn Fe2O4nanoparticles reported herein mainly depend on the size and shape of the nanoparticles and their aggregates.
关键词：
