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非晶合金Ｆｅ７６．５－ｘＣｕ１．０ＮｂｘＳｉ１３．５Ｂ９．０（ｘ＝１，３，５和７）的穆斯堡尔研究表明，Ｎｂ元素对非晶合金的磁有序温度Ｔｃ和磁超精细相互作用有很大的影响，随着Ｎｂ含量的增加，Ｔｃ减小，ｘ＝１，３，５时分别为６５５，５９７，５２５Ｋ；但当ｘ＝７时，出现了两个Ｔｃ分别为４７０和５３９Ｋ，由所计算的磁超精细场分布Ｐ（Ｈ）表明，最大几率处的内磁场Ｈｏ和平均内磁场＜Ｈ＞都随Ｎｂ含量的增加而减小，而分布的宽度△Ｈ则反之，并出现了磁超精细场分布Ｐ（Ｈ）的低场峰，且低场的几率也随之增大，这些结果表明了Ｎｂ元素使非晶体Ｆｅ－Ｆｅ间的平均磁相互作用减弱且在非晶体中富集。
Mossbauer studies of amorphous alloys Fe76.5-xCu1.0NbxSi13.5B9.0 (x = 1, 3, 5, and 7) have shown that the magnetic ordering temperature Tc and magnetic hyperfine mutuality of Nb for amorphous alloys Tc decreases with the increase of Nb content, which are respectively 655,597 and 525K at x = 1,3,5; however, when x = 7, there are two Tc values of 470 and 539K. From the calculated magnetic hyperfine field distribution P (H), it is shown that the internal magnetic field Ho and the average internal magnetic field at the maximum probability decrease with the increase of Nb content, while the distribution width ΔH, on the contrary, And the low field peak of magnetic superfine field distribution P (H) appears, and the probability of low field also increases. These results show that Nb element weakens the average magnetic interaction between amorphous Fe-Fe, Rich in crystals.