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本文研究了Y(Co_(1-X)M_X)_5化合物(M≡Ni、Cu、Al、Ti、V、Cr、Mn、Fe)的结构和Y(Co_(1-X)Ni_X)_5化合物的磁性能。发现当M为Ni或Cu时形成连续的CaCu_5型固溶体,而M为其它金属时,均匀区的范围变小。考虑了原子尺寸效应和电子浓度因素的影响,认为Y(Co_(1-X)Ni_X)_5中Ni原子对Co的连续替代与Ni原子的尺寸较小且磁矩较弱有关。点陈常数和原子间距随成分的变化的关系表明Ni原子优先占据CaCu_5型六角结构中Co原子的2C位而不是3g位。 文中研究了Y(Co_(1-X)Ni_X)_5化合物的居里温度与成分的关系和磁化强度与温度的关系,并用定域磁矩模型分析了低温内秉矫顽力_1H_C随成分的变化。
In this paper, the structures of Y (Co_ (1-X) M_X) _5 compounds (M≡Ni, Cu, Al, Ti, V, Cr, Mn, Fe) Magnetic properties. It was found that when M is Ni or Cu, a continuous CaCu_5 solid solution is formed, and when M is other metals, the range of the uniform region becomes smaller. Considering the influence of atomic size effect and electron concentration, it is considered that the continuous substitution of Ni for Y in Co (1-x) Ni_X) _5 is related to the smaller size of Ni atom and the weaker magnetic moment. The relationship between the lattice constant and the atomic distance with the change of composition shows that the Ni atom preferentially occupies the 2C atom rather than the 3g position of the Co atom in the CaCu_5 hexagonal structure. The relationship between Curie temperature and composition and the relationship between magnetization and temperature of Y (Co_ (1-X) Ni_X) _5 compounds were studied in this paper. The effect of temperature on the Curie temperature and the coercivity _1H_C Variety.