Formation, crystal chemistry and magnetism of compounds RE2TGe6, RE rare earth, T Pd, Pt, Cu, Ag and Au
作者:O. Sologub、K. Hiebl、P. Rogl、O.I. Bodak
DOI:10.1016/0925-8388(95)01617-1
日期:1995.8
Abstract Novel ternary compounds RE 2 TGe 6 (RE Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb; T Pd, Pt, Ag, Au) were synthesized by argon arc melting followed by a heat treatment at 600 or 800 °C for 150 h. From X-ray powder analysis all compounds were found to be isotypic with structure type Ce 2 CuGe 6 . Magnetic susceptibilities were measured for RE 2 CuGe 6 (RE Ce, Pr, Nd, Sm) and Ce 2 PdGe
摘要 合成了新型三元化合物 RE 2 TGe 6 (RE Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb; T Pd, Pt, Ag, Au)氩弧熔化,然后在 600 或 800 °C 下热处理 150 小时。通过 X 射线粉末分析,发现所有化合物都与结构类型 Ce 2 CuGe 6 同型。测量了 RE 2 CuGe 6 (RE Ce、Pr、Nd、Sm)和 Ce 2 PdGe 6 的磁化率。所有化合物都表现出低于 20 K 的反铁磁排序。顺磁有效矩与三正 RE 离子矩的值一致。含有 Sm 的样品显示了 Neel 点上方典型的 Van Vleck 型顺磁性。