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Synthesis and Magnetic Anisotropy Analysis of Co/Au Multilayered Nanowires

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2 Author(s)
Yanqiu Li ; Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China ; Liangliang Li

Co/Au multilayered nanowires with a diameter of 80 nm were electrodeposited into anodic aluminum oxide templates in a single plating bath without any toxic cyanide. The nanowires with various layer thicknesses were characterized by transmission electron microscopy. X-ray diffraction spectra revealed that Au layers and Co-rich layers exhibited a face-centered cubic (111) texture and a hexagonal closed-packed structure, respectively. Hysteresis loops of the Co/Au nanowires demonstrated that the nanowire arrays had a strong magnetic anisotropy parallel to the nanowires and the squareness increased with increasing the thickness of the Co-rich layers. The mechanisms for the magnetic anisotropy of the Co/Au nanowires were analyzed.

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Magnetics, IEEE Transactions on  (Volume:48 ,  Issue: 11 )