中国物理B ›› 2015, Vol. 24 ›› Issue (10): 107505-107505.doi: 10.1088/1674-1056/24/10/107505

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Magnetic–optical bifunctional CoPt3/Co multilayered nanowire arrays

苏轶坤a, 闫志龙a, 吴喜明a, 刘欢a, 任肖b, 杨海涛b   

  1. a College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China;
    b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2015-06-17 修回日期:2015-07-13 出版日期:2015-10-05 发布日期:2015-10-05
  • 基金资助:

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

Magnetic–optical bifunctional  CoPt3/Co multilayered nanowire arrays

Su Yi-Kun (苏轶坤)a, Yan Zhi-Long (闫志龙)a, Wu Xi-Ming (吴喜明)a, Liu Huan (刘欢)a, Ren Xiao (任肖)b, Yang Hai-Tao (杨海涛)b   

  1. a College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China;
    b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2015-06-17 Revised:2015-07-13 Online:2015-10-05 Published:2015-10-05
  • Contact: Yang Hai-Tao E-mail:htyang@iphy.ac.cn
  • Supported by:

    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 CoPt3NWs. 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

Abstract:

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 CoPt3NWs. 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.

Key words: heterostructures, nanowires, magnetic properties, optic properties

中图分类号:  (Magnetic properties of interfaces (multilayers, superlattices, heterostructures))

  • 75.70.Cn
61.46.-w (Structure of nanoscale materials) 75.75.Cd (Fabrication of magnetic nanostructures) 78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)