Fe_(0.72)Ni_(0.28)纳米线阵列的制备与剩磁特性研究  

Fabrication and remanence properties of Fe_(0.72)Ni_(0.28) alloy nanowire arrays

作　　者：刘青芳[1] 王建波[1] 薛德胜[1] 

机构地区：[1]兰州大学磁学与磁性材料教育部重点实验室,甘肃兰州730000

出　　处：《兰州大学学报（自然科学版）》2006年第1期74-76,共3页Journal of Lanzhou University(Natural Sciences)

基　　金：国家自然科学基金(10404011;50401080);兰州大学引进人才启动基金资助项目.

摘　　要：利用电化学沉积的方法,在多孔氧化铝模板中成功制备出直径为50 nm,长度约4μm的 Fe0．72Ni0．28合金纳米线阵列．X射线衍射表明其结构为体心立方结构;等温剩磁曲线和直流退磁曲线表明在纳米线中,磁化较难,而退磁容易,而且组成纳米线的小粒子之间存在退磁性的相互作用．Fe0.72Ni0.28 alloy nanowire array, 50 nm in diameter and 4 μm in length, has been fabricated by electrochemical deposition of metals into porous aluminium oxide membranes. The X-ray diffraction result shows that the structure is a polycrystalline bcc structure. The remanence properties were studied by Isothermal remanent magnetization curves and dc-demagnetization curve, which showed that the magnetizing is easier than demagnetizing and a demagnetizing interaction could be found in nanowires.

关 键 词：合金 纳米线阵列 剩磁特性 

分 类 号：O482.54[一般工业技术—材料科学与工程]