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利用电化学沉积方法在氧化铝模板中制备了一维Fe和Fe0.95Pd0.05合金纳米线阵列.两种样品均有(110)晶向择优取向,纳米线直径为60nm.在这一直径下形状各向异性和内禀晶体各向异性的竞争结果很适合考察Pd掺杂的磁性行为.研究发现在FePd纳米线中,由于极少量Pd在Fe中的合金化,减弱了晶体各向异性与形状各向异性的影响,改变了磁畴结构,增强了畴壁钉扎作用,结果在Fe0.95Pd0.05纳米线中便显示出强烈的沿线方向的各向异性,方形度和矫顽力也有较大改善.
One-dimensional Fe and Fe0.95Pd0.05 alloy nanowire arrays were prepared by electrochemical deposition in an alumina template. Both samples had a preferred orientation of (110) crystal orientation and a nanowire diameter of 60 nm. The results of the anisotropy of shape anisotropy and intrinsic crystal anisotropy are very suitable for investigating the magnetic behavior of Pd doping.It is found that in the FePd nanowire, due to the alloying of a very small amount of Pd in Fe, the crystal anisotropy and Shape anisotropy, change the magnetic domain structure, enhanced wall pinning effect, the results in the Fe0.95Pd0.05 nanowire will show a strong anisotropy along the direction, squareness and coercivity Great improvement.