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Synthesis and magnetic properties of Fe100-xMox alloy nanowire arrays |
Gao Hua (高华), Gao Da-Qiang (高大强), Xue De-Sheng (薛德胜) |
Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China |
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Abstract The Fe100-xMox (13 < x < 25) alloy nanowire arrays are synthesized by electrodeposition of Fe2 + and Mo2 + with different ionic ratios into the anodic aluminum oxide templates. The crystals of Fe100-xMox alloy nanowires gradually change from polycrystalline phase to amorphous phase with the increase of the Mo content and the nanowires are of amorphous structure when the Mo content reaches 25 at%, which are revealed by the X-ray diffraction and the selected area electron diffraction patterns. As the Mo content increases, the magnetic hysteresis loops of Fe100-xMox alloy nanowires in parallel to the nanowire axis are not rectangular and the slopes of magnetic hysteresis loops increase. Those results indicate that the magnetostatic interactions between nanowires and the magnetocrystalline anisotropy both have significant influences on the magnetization reversal process of the nanowire arrays.
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Received: 09 September 2010
Revised: 25 January 2011
Accepted manuscript online:
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PACS:
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75.50.Kj
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(Amorphous and quasicrystalline magnetic materials)
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75.50.Bb
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(Fe and its alloys)
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75.30.Gw
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(Magnetic anisotropy)
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Fund: Project supported by the National Science Fund for Distinguished Young Scholars, China (Grant No. 50925103), the Key Program of the Chinese Ministry of Education (Grant No. 309027), and the Fund for Academic Newcomer of Ph. D. of Lanzhou University, China. |
Cite this article:
Gao Hua (高华), Gao Da-Qiang (高大强), Xue De-Sheng (薛德胜) Synthesis and magnetic properties of Fe100-xMox alloy nanowire arrays 2011 Chin. Phys. B 20 057502
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