A study of the solid solutions CeM_2-xM’_xGe₄O₁₂ (M = Mn, Co; M’ = Ni, Cu) by X-ray diffraction and magnetometry is described. For M = Co the introduction of Ni and Cu was possible for x ≤ 0.5; for M = Mn attempts to introduce Cu were unsuccessful but CeMn_1.5Ni_0.5GeO₄ was obtained as a single phase. These compositions crystallise in the space group P4/nbm with a ~9.76, c ~4.85 Å. They all order antiferromagnetically with T_N< 10 K. The magnetic structures adopted by CeMn_1.5Ni_1.5Ge₄O₁₂ and CeCo_1.5Cu_0.5Ge₄O₁₂ were shown by neutron diffraction to be the same as those adopted by CeMn₂Ge₄O₁₂ and CeCo₂Ge₄O₁₂, respectively. The in-field metamagnetic transition of the latter to a weakly ferromagnetic phase was shown to persist in the Cu-doped composition. The available data suggest that the anisotropy associated with the Co²⁺ cation plays a dominant role in determining the magnetic behaviour of these compounds.

所述固溶体的Ce的研究中号_2-X M ' _X戈₄ ø ₁₂（中号=锰，钴; M' =镍，铜）通过X射线衍射和磁力进行说明。对于中号= CO引入Ni和Cu是可能的X  ≤0.5; 对于M＝ Mn，尝试引入Cu的尝试没有成功，但是获得了单相CeMn _1.5 Ni _0.5 GeO ₄ 。这些组合物在空间群结晶P 4 / NBM与一个〜9.76，Ç约4.85Å。他们都反铁磁顺序和T _Ñ <10 K.通过CeMn通过的磁结构_1.5镍_1.5葛₄ ö ₁₂和CECO _1.5铜_0.5葛₄ ö ₁₂用中子衍射显示是相同的，通过采用CeMn那些₂戈₄ O ₁₂和CeCo ₂ Ge ₄ O ₁₂ 。后者在场内的亚磁跃迁到弱铁磁相被证明在掺杂铜的成分中持续存在。现有数据表明，与钴有关的各向异性²⁺阳离子在确定这些化合物的磁行为中起主要作用。