(FeCo)_1−xCr_x nanowires (NWs) were grown by a pulsed AC electrodeposition technique into aluminum oxide nanoporous templates with good consistency. The structural features and morphologies of the NWs array were examined by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). A vibrating sample magnetometer equipped with the first-order reversal curve (FORC) diagram was then used to find the magnetic properties. The formation of NW with the (110) texture was also confirmed for the whole series samples. With increasing the Cr addition on the FeCo NW arrays, the corresponding diffraction peak in the XRD patterns was shifted to the lower angles and the lattice constant was increased. FE-SEM analysis also revealed that (FeCo)_1−xCr_x NWs with the length of 10 µm were grown above the Cu pre-plating layer into aluminum oxide with the pore diameter of 30 nm. Further, the hysteresis loops showed that the coercivity were decreased from 2265 to 1388 Oe, respectively, with an increase in the Cr content from the concentration of 0 to 0.03 M. FORC diagrams proved a decrease of the magnetostatic interaction with Cr content and a non-interacting single domain structure for the maximum Cr addition. Local magnetic interactions were also found to prevail in the presence of the Cr element beside the magnetic phase.

（FeCo）_1-x Cr _x纳米线（NWs）通过脉冲交流电沉积技术生长到具有良好一致性的氧化铝纳米多孔模板中。通过X射线衍射（XRD）和场发射扫描电子显微镜（FESEM）检查了NWs阵列的结构特征和形貌。然后，使用配有一阶反向曲线（FORC）图的振动样品磁力计来查找磁性能。对于整个系列样品，也证实了具有（110）织构的NW的形成。随着FeCo NW阵列上Cr含量的增加，XRD图谱中相应的衍射峰移至较低的角度，晶格常数增加。FE-SEM分析还表明（FeCo）_1-x Cr在Cu预镀层上方生长了10微米长的_x NW，形成了孔径为30 nm的氧化铝。此外，磁滞回线显示，随着Cr含量从0的浓度增加到0.03 M，矫顽力分别从2265 Oe和1388 Oe降低。 -相互作用的单畴结构，可最大程度地添加Cr。还发现在磁性相旁边存在Cr元素时，局部磁性相互作用占主导。