Magnetic–optical bifunctional  CoPt3/Co multilayered nanowire arrays

doi:10.1088/1674-1056/24/10/107505

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.

Keywords: heterostructures nanowires magnetic properties optic properties

Received: 17 June 2015
Revised: 13 July 2015
Accepted manuscript online:

PACS:	75.70.Cn	(Magnetic properties of interfaces (multilayers, superlattices, heterostructures))
	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)

Fund:

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

Corresponding Authors: Yang Hai-Tao
E-mail: htyang@iphy.ac.cn

Cite this article:

Su Yi-Kun (苏轶坤), Yan Zhi-Long (闫志龙), Wu Xi-Ming (吴喜明), Liu Huan (刘欢), Ren Xiao (任肖), Yang Hai-Tao (杨海涛) Magnetic–optical bifunctional CoPt₃/Co multilayered nanowire arrays 2015 Chin. Phys. B 24 107505

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Magnetic–optical bifunctional CoPt3/Co multilayered nanowire arrays

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Magnetic–optical bifunctional CoPt₃/Co multilayered nanowire arrays