摘要
利用化学方法制备了尖晶石结构的LiMn2O4材料,并对其进行了磁性测量.结果表明:随着Li/Mn比例的增加,Mn+4数量增加,90°的Mn+4-O-Mn+4的铁磁相互作用使居里温度升高,样品由反铁磁性逐渐向铁磁性过渡.
LiMn2O4 with spinel structure was synthesized and the magnetic properties were measured. The increase of Li/Mn ratio led to the increased amount of Mn^＋4. And the interaction in Mn^＋4-O-Mn^＋4 increased the transitional temperature from antimagnetism to ferromagnetism.
出处
《吉林师范大学学报（自然科学版）》
2008年第3期78-80,共3页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然基金项目(60778040)
吉林省杰出青年科学研究计划项目(20060123)
关键词
铁磁
反铁磁
临界温度
ferromagnet
antiferromagnet
transitional temperature
