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利用直流电化学沉积法通过调节沉积参数在多孔阳极氧化铝模板中制备出了束状形貌的Co89Cu11纳米线阵列.结构分析表明,束状结构就是沿纳米线长轴方向密集排列的堆垛层错,根据CoCu纳米线的生长机理对这种结构的形成进行了解释.在相同成分比的情况下,该结构的Co89Cu1纳米线阵列具有明显优于一般结构的矩形比(S∥=0·96),说明该结构的纳米线阵列的形状各向异性远好于一般结构.通过磁性测量和模型计算得到Co89Cu11纳米线阵列在反磁化过程中遵从对称扇形转动的球链模型,并从结构的角度分析了Co89Cu11纳米线阵列的反磁化行为.
The morphology of Co89Cu11 nanowire arrays was prepared by the direct current electrochemical deposition method by adjusting the deposition parameters in the porous anodic alumina template.The structural analysis shows that the bundle structure is a stacking fault closely arranged along the long axis of nanowires , The formation of this structure is explained according to the growth mechanism of CoCu nanowires.With the same composition ratio, the Co89Cu1 nanowire arrays of this structure have a significantly better squareness than the general structure (S∥ = 0.96) , Indicating that the shape anisotropy of the nanowire arrays is much better than that of the general structure.The spherical chain model of the Co89Cu11 nanowire arrays which obeys the symmetrical fan rotation during the anti-magnetization process is obtained by magnetic measurement and model calculation, and from the structural point of view The anti-magnetization behavior of Co89Cu11 nanowire arrays.