Arrays of α-Fe2O3 nanowires embedded in anodic alumina membranes were obtained after heat-treating β-FeOOH nanowire arrays fabricated by electrochemical deposition. Haematite polycrystalline nanowires with maximum length of about 7μm and average diameter of about 120nm were characterized by means of x-ray diffraction and transmission electron microscopy. The Morin temperature below 80 K and N´eel temperature of about 350K for the α-Fe2O3 nanowire arrays, far lower than those of bulk material, were measured by Mössbauer spectroscopy and using a Magnetic Property Measurement System.

用交流电化学沉积方法在阳极氧化铝模板中成功地制备了直径约16nm，长度4μm的Fe1-xNix（0<x≤0.32）合金纳米线。在该成分范围内合金纳米线的结构均为bcc结构，且表现出（110）面的择优取向。穆斯堡尔谱的研究表明由于存在很大的形状各向异性，纳米线内部铁原子的磁矩取向均沿着纳米线的方向。而且随着镍含量的增加，超精细磁场平缓变化，与块体中的变化趋势一致。