镍-铜合金电子结构的分析

来源期刊：中南大学学报(自然科学版)1979年第1期

论文作者：谢佑卿 渠振亭 马柳莺 谢昭春

文章页码：63 - 75

关键词：电子结构； 铜合金； 原子磁矩； 镍原子； 铜原子； 中电子； 直线关系； 浓度范围； 原子百分比； 电子数

摘    要：在镍-铜合金的磁性研究中发现按镍原子数均分的平均原子磁矩μ(Ni)(假定μ(Cu)=0)与合金中铜的含量a_Cu有着直线关系。按合金中所有原子均分所得到的平均原子磁矩不具有这种直线关系,对历史上各种镍-铜合金的电子结构分析之后,我们提出了一个新的镍-铜合金的电子结构当铜含量范围在0≤a≤0.6时。它为(Ni)(3d↑)⁵ (3d↓)^4.4+a + (Ni-Cu) 4S^0.6(1-a)+a3+(Cu) (3d↑)⁵ (3d↓)⁵。当铜含量范围在0.6≤a≤1时,为(Ni-Cu)(3d↑)⁵(3d↓)⁵(4s)^a。除了磁性以外,我们还对电子结构与镍-铜合金的其它理性质的关系进行了讨论。

Abstract: In the sudy of the magnetic properties of nickel-copper alloys, it has been observed that the average-magnetic-moments per nickel atom μ(Ni)(on the assumption that μ(Cu) = 0) have a linear relationship to copper content aCu; but if the average-magnetic-moments are counted on all atoms of the alloy, this linear relationship does not hold. After a comperhensive analysis on various electronic structures of nickel-coppers alloys in history, a new electronic structure is proposed as (Ni)(3d↑)⁵ (3d↓)^4.4+a + (Ni-Cu) 4S^0.6(1-a)+a3+(Cu) (3d↑)⁵ (3d↓)⁵ in the region 0≤aCu≤0.6 and as (Ni-Cu) (3d↑)⁵(3d↓)⁵4S^a in the region0.6≤aCu≤1. In additon to the magnetic property, the relations of the electronic structure with the other physical properties of nickel-copper alloys have also been discussed.