关键词: 铁;铝;氧化物;模板;晶体;磁化;点阵

Abstract: Fe nanowire arrays are prepared by electrodeposition in porous anodic aluminum oxide
template from a composite electrolyte solution. These nanowires have an uniform diameter of
approximate 25 nm and a length in excess of 2.5μm.The micrographs and crystal structures
of Fe nanowlres are studied by transmission electron microscopy (TEM), selected-area
electron diffraction (SAED), and X-ray diffraction(XRD). It is found that each nanowire is
essentially a single crystal and has a different orientation in each array. Hysteresis
loops of Fe nanowire array show that its easy magnetization direction is perpendicular to
the sample plane.

Key words: electrodeposition, nanostructure, aluminum anodization