Study on magnetic property of Fe14Ni86 alloy nanowire array

Abstract Ordered Fe 14 Ni 86 alloy nanowire arrays implanted in anodic alumite template (AAT) have been fabricated by electrodepositing the corresponding material into the nanochannels. The wires are 43 nm in diameter and 50 μm in length. Their aspect ratio (ratio of length to diameter) is more than 1000, which results in distinctive magnetic anisotropy. The easy magnetization axis of this system is perpendicular to the membrane. Enhanced coercivity (about 769 Oe) and remanent magnetization up to 70% of the saturation magnetization have been observed. We also studied angular dependent coercivities of the Fe 14 Ni 86 alloy nanowire arrays and found that they fit well with the chain-of-sphere combined model of uniform rotation and non-symmetric fanning.