The exchange bias effects of CoFe2O4@NiO nanofibers fabricated by electrospinning | Zendy

Jianfeng Dai | Zendy; Wei Feng | Zendy; Cheng Chen | Zendy; Xinchao Wen | Zendy

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The exchange bias effects of CoFe₂O₄@NiO nanofibers fabricated by electrospinning

Author(s) -

Jianfeng Dai,

Wei Feng,

Cheng Chen,

Xinchao Wen

Publication year - 2020

Publication title -

materials research express

Language(s) - English

Resource type - Journals

ISSN - 2053-1591

DOI - 10.1088/2053-1591/ab7e6e

Subject(s) - non blocking i/o , exchange bias , spintronics , materials science , anisotropy , condensed matter physics , nanostructure , core (optical fiber) , electrospinning , crystallinity , fabrication , nanotechnology , magnetic anisotropy , ferromagnetism , magnetic field , composite material , chemistry , optics , physics , magnetization , medicine , biochemistry , polymer , alternative medicine , quantum mechanics , pathology , catalysis

Exchange bias effect(H EB ) systems offer various technological application, which has been playing a key role in spintronics. CoFe 2 O 4 @NiO with core–shell nanostructure has been synthesized through coaxial electronspinning. The exchange bias of CoFe 2 O 4 @NiO is different in the different molar ratio of core to shell, when the ratio of core to shell is 1:3, its maximum value is of 763 Oe at 5 K. Also, the values of Mr, Ms, Mr/Ms and Hc at 300 K and 5 K are first increases then decreases due to the molar ratio of NiO, its pinning effect play a vital role. Its anisotropy and magnetic domain structure have been primarily studied. The improvement of Hc will influence the H EB , which has a significant application value in spintronic devices.

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