CePt_(1-x)Rh_x(0≤x≤0.9)的磁性模拟与晶场分裂(英文)  

THE MAGNETISM SIMULATION AND CRYSTALLINE ELECTRIC FIELD SPLITTING OF CePt_(1-x)Rh_x(0≤x≤0.9)

作　　者：路莹[1] 韩运侠[1] 

机构地区：[1]河南洛阳师范学院物理与电子信息学院,河南洛阳471022

出　　处：《低温物理学报》2012年第1期17-21,共5页Low Temperature Physical Letters

基　　金：Project Supported the by Natural Science Research Program of Henan Educational Committee(Grant nos.2009B590001,2010B140010)~~

摘　　要：基于晶场理论,我们模拟了Kawasaki小组测量的磁化率倒数与温度关系曲线,使用点电荷晶场模型得到了伪二元合金CePt1-xRhx(0≤x≤0.9)的晶场分裂能和相应波函数.计算表明,Kramers离子Ce3+在晶场效应的作用下,基态简并部分消除得到了三个双重态,模拟得到的化合物的磁化率倒数与温度关系曲线与实验曲线吻合较好.本研究为进一步研究CePt1-xRhx的磁结构提供了参考.Based on the crystalline electric field （CEF） theory, we simulated the temperature dependence of in- verse magnetic susceptibility measured by Kawasaki group. Using the simple point-charge CEF model, we obtained CEF splitting levels and corresponding wave functions for pseudo-binary alloys CePt1-xRhx （0≤x≤0. 9）. The calculated results indicated that Kramers ion Cea＋ have three doublet ground state, our results are in good agreement with the experimental data. This work provided a reference for the nature of magnetic structures in CePt1-xRhx.

关 键 词：CePt1-xRhx 磁化率 晶场效应 

分 类 号：O513[理学—低温物理]