某些RCo_5和R_2Co_(17)化合物的R^(3+)离子磁晶各向异性稳定能与温度关系的研究  

作　　者：张向牧[1] 张晓辉[2] 张忠武[3] 

机构地区：[1]沧州师范专科学校 [2]北京大学材料科学与工程学院 [3]河北师范大学

出　　处：《哈尔滨师范大学自然科学学报》2001年第4期65-69,共5页Natural Science Journal of Harbin Normal University

摘　　要：This paper reports that the study results of the stabilization energy dependence of the temperature for RCo 5(R=Pr,Nd,Tb,Dy,Ho) and R 2Co 17(R=Er,Tm,Yb) compounds,which was studied again by us after J.E.Greedan & V.U.S.Rao and For RCo 5(R=Pr,Nd,Tb,Dy,Ho)compounds was defferent from the results of J.E.Greedan and V.U.S.Rao.|E st(T)| monotonously decreases with increase in temperature.Moreover,at a higher temperature,as the temperature rises,|E st(T)| drops more drastically than the results obtained by J.E.Greedan and V.U.S.Rao.The shape of curves describing |E st(T)| for R 2Co 17-Th 2Ni 17(I) and (Ⅱ)(R=Er,Tm,Yb) is similar with that of RCo 5(R=Pr,Nd,Tb,Dy,Ho).Furthermore,|E st(T)| of R 2Co 17-Th 2Ni 17(R=Er,Tm,Yb) composed of that of R 2Co 17-Th 2Ni 17(I) and (Ⅱ)(R=Er,Tm,Yb) is still much defferent from the results obtained by J.E.Greedan and V.U.S.Rao.The paper also elaborately illustrate the numerical method in deriving these consequence.This paper reports that the study results of the stabilization energy dependence of the temperature for RCo 5(R=Pr,Nd,Tb,Dy,Ho) and R 2Co 17(R=Er,Tm,Yb) compounds,which was studied again by us after J.E.Greedan & V.U.S.Rao and For RCo 5(R=Pr,Nd,Tb,Dy,Ho)compounds was defferent from the results of J.E.Greedan and V.U.S.Rao.|E st(T)| monotonously decreases with increase in temperature.Moreover,at a higher temperature,as the temperature rises,|E st(T)| drops more drastically than the results obtained by J.E.Greedan and V.U.S.Rao.The shape of curves describing |E st(T)| for R 2Co 17-Th 2Ni 17(I) and (Ⅱ)(R=Er,Tm,Yb) is similar with that of RCo 5(R=Pr,Nd,Tb,Dy,Ho).Furthermore,|E st(T)| of R 2Co 17-Th 2Ni 17(R=Er,Tm,Yb) composed of that of R 2Co 17-Th 2Ni 17(I) and (Ⅱ)(R=Er,Tm,Yb) is still much defferent from the results obtained by J.E.Greedan and V.U.S.Rao.The paper also elaborately illustrate the numerical method in deriving these consequence.

关 键 词：钴类化合物 阳离子 磁晶各异性能 稳定能 温度 单离子模型 哈密顿 

分 类 号：O614.812[理学—无机化学]