Influence of sinter temperature on the structure and magnetism of the composition system La0.9Sr0.1MnO3/γ-Fe2O3
Nano powders La0.9Sr0.1MnO3 and soft-ferrite γ-Fe2O3 have been prepared using soft-chemistrymethod, and g-Fe2O3 was doped in La0.9Sr0.1MnO3 with different ratio, and then was sintered at differenttemperature. The samples have been investigated by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). It is found that the two powders La0.9Sr0.1MnO3 and γ-Fe2O3 keep in their structure and ingredient respectively after being annealed under high temperature, and there is no new phase engender. The residual magnetization and specific saturation magnetization of the composition system are higher with the rising temperature. The influence of the sinter temperature on the grain size of the sample is the main reason which leads to the change of coercivity.
Sol-gel Sinter Composition system.
刘力虎 胡彦英 彭燕 范胜华 孙会员 申俊杰
河北师范大学物理科学与信息工程学院,河北石家庄050016 石家庄铁道学院,河北石家庄050043
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）