Amorphous Fe_xNi${}_{80-x}$B${}_{12}$Si₈ alloys ($x=0.10$ to 16) were fabricated by employing wheel melt spinning process. Measurements of magnetization were made over temperature range of 4.20–360$$K and with an applied magnetic field up to 160$$kOe. By making a substitution Ni by Fe, the $T_C$ (Curie temperature) was actually discovered to rise. The spin wave (SW) theory was used to examine the magnetism at low temperatures. At low temperatures (4.20$$K), magnetization curves were found to obey Bloch’s $T^{3∕2}$ law. Certain important parameters were determined, such as the constant D (SW stiffness) and the distance between interatomic transition metals $(r_{\mathrm{\text{TM}}-\mathrm{\text{TM}}})$ for the different compositions. We employed the law of approach to magnetic saturation to obtain some important parameters, including a random magnetic anisotropy constant $(K_L)$ and then the anisotropy local correlation length. So, it’s worth noting that as Fe concentration rises, the exchange constants, random magnetic anisotropy constant $(K_L)$, and also the ferromagnetic correlation $(R_f)$ rise.

无定形铁_x镍${}_{80-X}$乙${}_{12}$Si ₈合金（$X=0.10$至 16) 是通过采用轮式熔体纺丝工艺制造的。在 4.20–360 的温度范围内进行磁化测量$$K 和施加的磁场高达 160$$koe。通过用 Fe 代替 Ni，${吨}_C$（居里温度）实际上被发现上升。自旋波（SW）理论被用来检查低温下的磁性。在低温（4.20$$K），发现磁化曲线服从布洛赫的${吨}^{3∕2}$法律。确定了某些重要参数，例如常数D（SW 刚度）和原子间过渡金属之间的距离$(r_{\mathrm{\text{TM值}}-\mathrm{\text{TM值}}})$对于不同的成分。我们采用磁饱和趋近定律来获得一些重要参数，包括随机磁各向异性常数$({ķ}_{\mathrm{大号}})$然后是各向异性局部相关长度。因此，值得注意的是，随着 Fe 浓度的升高，交换常数、随机磁各向异性常数$({ķ}_{\mathrm{大号}})$，以及铁磁相关性$(R_F)$上升。