Magnetic materials;
Multilayers;
Nanostructures;
Magnetic properties;
PERPENDICULAR GIANT MAGNETORESISTANCE;
ARRAYS;
FE;
COERCIVITY;
REVERSAL;
ALUMINA;
D O I:
10.1016/j.matchemphys.2013.11.021
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Fe/Cu multilayer nanowires were ac-pulse electrodeposited into the anodic aluminum oxide templates prepared by a two-step mild anodization technique. Transmission electron microscopy images showed the distinct layers with a relatively high contrast. A highly pure layer (similar to 99%) was achieved by tuning the proper ions ratio and optimizing the off-time between pulses of each layer in the single electrodeposition bath. Fe/Cu multilayer nanowires with 38 nm diameter were obtained. The effect of reducing the Fe layer thickness on the magnetic properties of Fe/Cu multilayer nanowires was investigated. It was seen that reducing the Fe layer thickness, thereby variation of rode- to disc-like multilayer nanowires, caused to rotate the magnetic easy axis from parallel to perpendicular to the wires axis. (C) 2013 Elsevier B.V. All rights reserved.
机构:
Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
PINSTECH, Div Phys, Nanomat Res Grp, Islamabad 45650, PakistanChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Maaz, K.
Duan, J. L.
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Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Duan, J. L.
Karim, S.
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PINSTECH, Div Phys, Nanomat Res Grp, Islamabad 45650, PakistanChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Karim, S.
Chen, Y. H.
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Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Chen, Y. H.
Yao, H. J.
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Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Yao, H. J.
Mo, D.
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Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Mo, D.
Sun, Y. M.
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Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China
Sun, Y. M.
Liu, J.
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Chinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Mat Res Ctr, Lanzhou 730000, Peoples R China