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对电化学沉积法在多孔氧化铝中制备的一维单晶Co纳米线阵列的结构和形态利用各种x射线衍射测量方法进行了细致的表征 .确定了阵列中的纳米线在线长方向均为一致的晶体学取向 ,并以很高的平行度排列 .并且发现生长条件可能在一维纳米线中引起不同程度的螺旋晶格曲扭 .根据实验观察结果提出了一个具有手性的螺旋曲扭模型 .利用超导量子干涉磁强计测量了样品在 30 0K下的磁特性 ,分析发现螺旋扭曲可以在相当大的程度上改变纳米线阵列的各向异性 .说明利用磁弹性效应有可能有效地调节纳米线的磁各向异性
The structure and morphology of one-dimensional single-crystal Co nanowire arrays prepared by electrochemical deposition in porous alumina were characterized by various x-ray diffraction methods. The nanowires in the array were confirmed to be Consistent with the crystallographic orientation and aligned with a high degree of parallelism, and found that growth conditions may cause different degrees of spiral lattice twist in one-dimensional nanowires.According to experimental observations, a chiral twist Model. The superconducting quantum interference magnetometer was used to measure the magnetic properties of the samples at 300K. It was found that the twist of the helix can change the anisotropy of the nanowire arrays to a considerable degree. This shows that it is possible to effectively use the magnetoelastic effect Adjust the magnetic anisotropy of nanowires