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铁磁性化合物Nd3Co的居里温度Tc=25K,其结晶属于斜方晶系的Fe3C型结构(空间群Pnma),其中Nd原子占居4c和8d位置,Co原子占居其它的4c位置[1],这个结构表出了由角处为稀土类原子的两个三棱柱的特征.为了弄清Nd原子4c和8d位置上的磁矩(包括大小及方向),我们使用Nd3Co多晶样品...
The Curie temperature Tc of the ferromagnetic compound Nd3Co is 25K and its crystal belongs to orthorhombic Fe3C structure (space group Pnma), in which Nd atoms occupy 4c and 8d positions and Co atoms occupy the other 4c positions [1] , This structure shows the characteristics of two triangular prisms with rare earth atoms at the corners. In order to understand the magnetic moment (including size and orientation) of the Nd atoms 4c and 8d, we use Nd3Co polycrystalline samples.