稀土化合物RCuAs_2(R=Ce,Pr,Nd,Tb)的晶场效应研究

The Crystalline Electric Field Effect of Rare Earth Compounds RCuAs_2 (R=Ce,Pr,Nd,Tb)

通过对稀土化合物RCuAs2(R=Ce,Pr,Nd,Tb)的磁化率倒数—温度曲线的晶场模拟,得到了该系列化合物的晶场系数和晶场分裂能.并从理论上分析了晶场效应对化合物磁性的影响,计算结果与实验获得了较好的吻合.

In this paper, we obtain the crystalline electric field （CEF） parameters and the CEF splitting levels for rare earth compounds RCuAs2 through simulating the temperature dependence of the inverse magnetic susceptibility by taking into account the effect of CEF. Then the influence of CEF on magnetism was discussed theoretically. The calculated results are in good agreement with the experimental data.