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Magnetic field annealing effect and superparamagnetic contributions in one-dimensional CoPt nanostructures
Ali, S. S.; Li, W. J.; Javed, K.; Irfan, M.; Fazal-e-Aleem; Zhai, G. J.; Han, X. F.; Han, XF (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
作者部门空间技术部
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
2017
卷号722页码:83-87
ISSN0925-8388
语种英语
关键词Electrodeposition Nanowires
摘要A low cost versatile electrochemical method has been employed to synthesize highly ordered CoPt nanowires (NWs) in anodic aluminum oxide (AAO) templates with average pore diameter of about 100 nm. The structural properties of as deposited NWs have been studied through XRD analysis showing face centered cubic (fcc) as the dominant phase of CoPt NWs. Magnetic properties at room temperature and lower temperature has been investigated with applied field parallel and perpendicular to NWs axis. The easy magnetization axis is aligned perpendicular to NWs owing to the strong magnetostatic interactions among the NWs due to smaller interwire distance (similar to 15 nm). Furthermore, the as deposited arrays of NWs have been annealed for 2 h at 300 degrees C in the presence of 1 T magnetic field applied in the direction perpendicular to NWs axis. Magnetic field annealing gives improved structural and magnetic behavior of these one-dimensional (1D) nanostructures resulting improved crystallinity and increased values of coercivity (H-c) and remnant squareness (SQ). Superparamagnetic contributions at lower temperature due to presence of fine nanoparticles in blocking state play important role and leads to enhanced magnetic behavior of CoPt NWs. (C) 2017 Elsevier B. V. All rights reserved.
收录类别SCI ; EI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/5970
专题空间技术部
通讯作者Han, XF (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
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Ali, S. S.,Li, W. J.,Javed, K.,et al. Magnetic field annealing effect and superparamagnetic contributions in one-dimensional CoPt nanostructures[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,722:83-87.
APA Ali, S. S..,Li, W. J..,Javed, K..,Irfan, M..,Fazal-e-Aleem.,...&Han, XF .(2017).Magnetic field annealing effect and superparamagnetic contributions in one-dimensional CoPt nanostructures.JOURNAL OF ALLOYS AND COMPOUNDS,722,83-87.
MLA Ali, S. S.,et al."Magnetic field annealing effect and superparamagnetic contributions in one-dimensional CoPt nanostructures".JOURNAL OF ALLOYS AND COMPOUNDS 722(2017):83-87.
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