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Issue 6, 2014
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Ultrathin nanosheets of feroxyhyte: a new two-dimensional material with robust ferromagnetic behavior

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Abstract

Two dimensional (2D) nanosheets have shown great potential for their applications in next-generation nanoelectronic devices. However, developing 2D nanosheets for next-generation spintronics has been blocked due to their lack of robust intrinsic ferromagnetic behavior. Here, we highlight the robust ferromagnetic behavior in a 2D inorganic graphene-like structure. δ-FeOOH ultrathin nanosheets, as a new 2D material, exhibit an unprecedented high saturation magnetization value of 7.5 emu g−1 at room temperature, which is the highest value among graphene and graphene analogues. Atomic-scale topochemical transformation ensures the formation of 2D δ-FeOOH ultrathin nanosheets from intermediate Fe(OH)2 nanosheets. Moreover, the δ-FeOOH ultrathin nanosheet is found to be a semiconductor with a direct band gap of 2.2 eV. Owing to the advantages of robust ferromagnetism in semiconductors, δ-FeOOH ultrathin nanosheets are promising candidates for the construction of next-generation spintronics.

Graphical abstract: Ultrathin nanosheets of feroxyhyte: a new two-dimensional material with robust ferromagnetic behavior

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Publication details

The article was received on 03 Dec 2013, accepted on 12 Feb 2014 and first published on 13 Feb 2014


Article type: Edge Article
DOI: 10.1039/C3SC53303D
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Citation: Chem. Sci., 2014,5, 2251-2255

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    Ultrathin nanosheets of feroxyhyte: a new two-dimensional material with robust ferromagnetic behavior

    P. Chen, K. Xu, X. Li, Y. Guo, D. Zhou, J. Zhao, X. Wu, C. Wu and Y. Xie, Chem. Sci., 2014, 5, 2251
    DOI: 10.1039/C3SC53303D

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