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Exchange bias in two-step artificially grown one-dimensional hybrid Co-BiFeO3core-shell nanostructures
Ali, S.S.; Li, W.J.; Javed, K.; Shi, D.W.; Riaz, S.; Zhai, G.J.; Han, X.F.
Department空间技术部
Source PublicationNanotechnology
2015
Volume27Issue:4
ISSN09574484
Language英语
AbstractOne-dimensional core-shell nanostructures consisting of a ferromagnetic cobalt core and a multiferroic BiFeO3(BFO) shell were fabricated by an artificial two-step methodology. The coupling between the ferromagnetic core and multiferroic shell manifests a significant exchange bias effect which gives a clear demonstration of the anti-ferromagnetic functionality of the BFO shell material. Exchange biases of 30 Oe and 60 Oe are observed at 300 K and at 5 K, respectively. Superparamagnetic contributions at lower temperatures play an important role in contributing to overall magnetic behavior. Dominant shape anisotropy causes parallel alignment of the easy magnetization axis along the axis of core-shell nanowires. A coherent mode of the magnetization reversal mechanism is observed by the angular dependence of coercivity (Hc). This versatile two-step methodology can be employed to fabricate and investigate many other hybrid nanostructures leading to a vast scope of investigation for researchers. © 2016 IOP Publishing Ltd.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5263
Collection空间技术部
Recommended Citation
GB/T 7714
Ali, S.S.,Li, W.J.,Javed, K.,et al. Exchange bias in two-step artificially grown one-dimensional hybrid Co-BiFeO3core-shell nanostructures[J]. Nanotechnology,2015,27(4).
APA Ali, S.S..,Li, W.J..,Javed, K..,Shi, D.W..,Riaz, S..,...&Han, X.F..(2015).Exchange bias in two-step artificially grown one-dimensional hybrid Co-BiFeO3core-shell nanostructures.Nanotechnology,27(4).
MLA Ali, S.S.,et al."Exchange bias in two-step artificially grown one-dimensional hybrid Co-BiFeO3core-shell nanostructures".Nanotechnology 27.4(2015).
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