Ce_(1-x)Y_xPt_2Si_2(x=0.2,0.55,0.9)的晶场模拟  

Crystalline Electric Field Simulation of:Ce_(1-x)Y_xPt_2Si_2

作　　者：薛绛琴[1] 张克磊[1] 路庆凤[1] 

机构地区：[1]河南师范大学物理与信息工程学院,河南新乡453007

出　　处：《河南师范大学学报（自然科学版）》2010年第4期65-67,共3页Journal of Henan Normal University(Natural Science Edition)

基　　金：河南省教育厅自然科学基金(2007140008)

摘　　要：采用点电荷晶场理论模型,通过对Ce1-xYxPt2Si2(x=0.2,0.55,0.9)磁化率倒数—温度曲线的模拟,得到了其晶场分裂能和相应波函数,计算表明:晶场分裂能随x的增大而减小,晶场作用使得Ce3+六重简并基态分裂得到混合的双基态.The research is about the effect of the crystalline electric field（CEF）on the magnetic properties of ：Ce1-xYxPt2Si2.The temperature dependence of the inverse magnetic susceptibility is simulated using CEF theory.By simulation,the research has obtained the CEF splitting levels and the corresponding wave functions of ：Ce1-xYxPt2Si2.The CEF splitting energies of Ce3＋ decrease with the increase of the substitution x.The six fold degeneracy ground state of Ce3＋ is splitted into mixed double ground states through crystalline electric field effect.

关 键 词：Ce1-xYxPt2Si2 磁化率 晶场效应 

分 类 号：O482.54[一般工业技术—材料科学与工程]