Magnetic optical bifunctional CoPt_3/Co multilayered nanowire arrays  

作　　者：苏轶坤 闫志龙 吴喜明 刘欢 任肖 杨海涛 

机构地区：[1]College of Materials Science and Engineering,Shenzhen University [2]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2015年第10期477-480,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.51472165,51471185,and 11274370)

摘　　要：CoPt3/Co multilayered nanowire（NW） arrays are synthesized by pulsed electrodeposition into nanoporous anodic aluminum oxide（AAO） templates. The electrochemistry deposition parameters are determined by cyclic voltammetry to realize the well control of the ratio of Co to Pt and the length of every segment. The x-ray diffraction（XRD） patterns show that both Co and CoPt3 NWs exhibit face-centered cubic（ fcc） structures. In the UV-visible absorption spectra,CoPt3/Co NW arrays show a red-shift with respect to pure CoPt3 NWs. Compared with the pure Co nanowire arrays, the CoPt3/Co multilayered nanowire arrays show a weak shape anisotropy and well-modulated magnetic properties. CoPt3/Co multilayered nanowires are highly encouraging that new families of bimetallic nanosystems may be developed to meet the needs of nanomaterials in emerging multifunctional nanotechnologies.CoPt3/Co multilayered nanowire（NW） arrays are synthesized by pulsed electrodeposition into nanoporous anodic aluminum oxide（AAO） templates. The electrochemistry deposition parameters are determined by cyclic voltammetry to realize the well control of the ratio of Co to Pt and the length of every segment. The x-ray diffraction（XRD） patterns show that both Co and CoPt3 NWs exhibit face-centered cubic（ fcc） structures. In the UV-visible absorption spectra,CoPt3/Co NW arrays show a red-shift with respect to pure CoPt3 NWs. Compared with the pure Co nanowire arrays, the CoPt3/Co multilayered nanowire arrays show a weak shape anisotropy and well-modulated magnetic properties. CoPt3/Co multilayered nanowires are highly encouraging that new families of bimetallic nanosystems may be developed to meet the needs of nanomaterials in emerging multifunctional nanotechnologies.

关 键 词：HETEROSTRUCTURES nanowires magnetic properties optic properties 

分 类 号：TB383.1[一般工业技术—材料科学与工程]