%0 Journal Article
%T Synthesis, Structure and Magnetic Properties of CoNi Submicrospherical Chains
%A Yajing Zhang
%A Siu-Wing Or
%A Zhidong Zhang
%J Advances in Materials Physics and Chemistry
%P 7-13
%@ 2162-5328
%D 2011
%I Scientific Research Publishing
%R 10.4236/ampc.2011.12002
%X High-purity magnetic CoNi submicrospherical chains, each of length 20 ¦Ìm - 30 ¦Ìm and self-assembled from fcc-phase CoNi submicrospheres of average diameter 800 nm, are synthesized via a surfactant-assisted solvothermal route without the aid of nucleation agent. The effects of surfactant and reducing agent on the morphology and size of the CoNi chains are studied, and a possible growth mechanism for the CoNi chains is proposed. The CoNi chains show ferromagnetic characteristics with a similarly small saturation magnetization of 104.1 emu/g and a larger coercivity of 150 Oe at room temperature compared to the monodispersed CoNi submicrospheres of 105 emu/g and 34 Oe as a result of the increased shape anisotropy.
%K Chain-Like Assembles
%K CoNi
%K Magnetic Properties
%K Morphology
%K Solvothermal Route
%K Submicrospherical Chains
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=7617