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利用交流电化学沉积方法在氧化铝模板中制备了一维结构的Fe_χCo_(1-χ)(0≤χ≤0.51)二元合金纳米线阵列.X射线衍射结果显示,单质Co纳米线为(100)择优取向的hcp结构,FeCo合金纳米线则呈现(110)择优取向的bcc结构,而且衍射峰随纳米线中Fe含量的增加向低角度偏移.室温磁性测量结果显示,FeCo合金纳米线具有较好的磁特性.与Co纳米线相比,Fe的引入改善了Co纳米线的磁性能,使其呈现出较大的矫顽力和较高的矩形比.采用一致转动模型和对称扇形机理的球链模型分别计算了FeCo合金纳米线的矫顽力,发现其磁化反转机理与对称扇形机理的球链模型相符合.
The one-dimensional Fe_CoCo_ (1-x) (0≤x≤0.51) binary alloy nanowire arrays were prepared by the electrochemical deposition method in alumina template. The X-ray diffraction results showed that the single- Preferred orientation of the hcp structure, FeCo alloy nanowires showed (110) preferential orientation of the bcc structure, and the diffraction peak as the nanoscale Fe content increased to a low angle shift.Measuring at room temperature magnetic FeCo alloy nanowires have more Good magnetic properties.Compared with Co nanowires, the introduction of Fe improves the magnetic properties of Co nanowires, resulting in a larger coercivity and a higher squareness ratio.With the uniform rotation model and the symmetrical fan mechanism The ball-chain model calculates the coercivities of the FeCo alloy nanowires, respectively, and finds that the magnetization reversal mechanism is consistent with the ball-chain model of symmetrical fan-shaped mechanism.