CoFe nanowires were successfully synthesized in nanoporous anodized aluminum oxide (AAO) template by employing DC electrodeposition process. These nanowires have been electrodeposited in the presence of external magnetic field applied parallel (∥) to the axis of nanowires. The effects of externally applied magnetic field on magnetic and structural properties of CoFe nanowires were investigated. X-ray diffraction (XRD) was used to identify crystal structure of the samples. The XRD pattern indicates polycrystalline nature of Cobalt iron nanowires with Body Centered Cubic (BCC) crystal structure. Scanning Electron Microscopy (SEM) images revealed the uniform growth of nanowires inside the template. To explore the magnetic properties of Cobalt iron nanowires, vibrating sample magnetometer (VSM) was employed. It was revealed that for nanowires electrodeposited with external magnetic field, easy axis of magnetization is found parallel (∥) to the nanowire axis with large variation in anisotropic magnetization. Whereas for nanowires electrodeposited without external magnetic, easy axis of magnetization is perpendicular (⊥) to nanowires axis with small variation in anisotropic magnetization.

中文翻译：

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外磁场对电沉积 Co-Fe 纳米线结构和磁性的影响

采用直流电沉积工艺在纳米多孔阳极氧化铝 (AAO) 模板中成功合成了 CoFe 纳米线。这些纳米线是在平行施加外部磁场的情况下电沉积的（∥)到纳米线的轴。研究了外加磁场对CoFe纳米线的磁性和结构特性的影响。X射线衍射（XRD）用于鉴定样品的晶体结构。XRD 图案表明具有体心立方 (BCC) 晶体结构的钴铁纳米线的多晶性质。扫描电子显微镜 (SEM) 图像显示了模板内纳米线的均匀生长。为了探索钴铁纳米线的磁性，使用了振动样品磁力计（VSM）。结果表明，对于用外部磁场电沉积的纳米线，发现易磁化轴平行（∥)到纳米线轴，各向异性磁化强度变化很大。而对于没有外磁电沉积的纳米线，易磁化轴是垂直的（⊥)到纳米线轴，各向异性磁化强度变化很小。