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通过X射线衍射和磁性测量研究了Gd2 Co1 7-xMnx(x =0— 1)化合物的结构和磁性 .X射线衍射表明样品均为Th2 Zn1 7型菱方结构 .晶胞体积随Mn含量x线性增大 ,居里温度TC 单调下降 ,饱和磁化强度Ms 单调增加 ,化合物的磁晶各向异性场 μ0 Ha 先随Mn含量减少 ,当x =0 .6时达到最小 ,然后再增大
The structure and magnetic properties of the Gd2Co1 7-xMnx (x = 0-1) compounds were investigated by X-ray diffraction and magnetic measurements.The X-ray diffraction results showed that all the samples were of the Th2 Zn1 7 type rhombic structure.The unit cell volume was linear with the Mn content , The Curie temperature TC decreases monotonously and the saturation magnetization M increases monotonously. The magnetocrystalline anisotropy field μ0 Ha decreases as the Mn content decreases, reaches the minimum when x = 0.6 and then increases