稀土氟化物PrF_3的磁光效应与磁性  

A THEORETICAL STUDY ON THE FARADAY EFFECT AND MAGNETISM OF CRYSTAL PrF_3

作　　者：段明谦[1] 徐游[2] 

机构地区：[1]江苏教育学院物理系 [2]南京大学物理系

出　　处：《南京大学学报（自然科学版）》1993年第1期41-48,共8页Journal of Nanjing University（Natural Science）

基　　金：国家自然科学基金中国科学院物理研究所磁学开放研究实验室基金;国家教委博士点基金

摘　　要：本文计算了稀土氟化物PrF_3的Faraday旋转的Verdet常数及其磁化率,并研究了它们的温度特性。结果表明,该化合物在可见光范围内的Faraday效应主要是由Pr^(3+)离子的4f电子在4f^2和4f5d两组态之间的允许电偶极跃迁引起的,在考虑了晶场和外磁场的共同影响,并把Pr^(3+)离子的~3H_4态作为基态的情况下,不引入任何可调参数,计算结果与实验符合较好。In this paper the calculations, of the Faraday effect Verdet constant and magnetic susceptibility of the rare earth trifluoride PrF_3 are presented and its properties in the temperature range are discussed. It is found that the Faraday effect of this compound is mainly caused by the intra-ionic electric dipole transition between the 4f and 4f5d configurations. In the calculations, considering effects of crystal field and applied magnetic field on the ground state of Pr^(3+)ion, onlt ~3H_4 is included. The calculated results are in agreement with the experiments.

关 键 词：稀土氟化物 磁光效应 磁性 

分 类 号：O482.55[理学—固体物理]