高磁场下顺磁性NdF_3介质的磁特性  

The Magnetic Properties of Paramagnetic Neodymium Trifluoride in High Magnetic Field

作　　者：黄喜庆[1] 王维[1] 刘公强[1] 

机构地区：[1]上海交通大学物理系,上海200240

出　　处：《上海交通大学学报》2005年第8期1368-1370,共3页Journal of Shanghai Jiaotong University

摘　　要：理论计算了高磁场下顺磁性NdF3的磁特性.理论分析表明,顺磁性NdF3的分子场系数υ<0.在高于奈尔温度的一段温度区域内,随着温度的上升,NdF3介质的磁化率χ会发生急剧变化,同时引起磁亚晶格结构异乎寻常的变化.理论与实验结果较为吻合.The magnetic properties of the paramagnetic neodymium trifluoride NdF3 in high magnetic field were theoretically calculated. According to the theoretical analysis, the molecular field coefficient v of the paramagnetic NdF3 must be less than zero. The magnetic susceptibility χ will acutely change with the increasing of the temperature in a certain region of T〉TN, meanwhile, extraordinary changes of the magnetic sublattice structure happen. There is a good agreement between the theory and experimental results.

关 键 词：顺磁性 高磁场 氟化物 分子场 交换作用 磁特性 

分 类 号：O482.52[理学—固体物理]