Magnetization Reversal of High Aspect Ratio Iron Nanowires Grown by Electrodeposition

Electrochemical synthesis of magnetic nanowires with controlled geometry and magnetic anisotropy

“…Moreover, such nanowire arrays display a coercive field between 2 and 2.6 kOe, as can be seen in Figure 2.2, where the data of several nanowire arrays is collected and references therein). Qin et al (2012) reported a reduction in the coercive field and an apparent reduction in the uniaxial character of the magnetic anisotropy as the nanowire diameter is increased above 30 nm. Although the easy magnetization axis still lies parallel to the nanowires, the magnetostatic interactions strongly affect the shape of the hysteresis loops (HLs) made on nanowire arrays with 50-and 70-nm nanowire diameters (Figure 2.3).…”