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Issue 105, 2016, Issue in Progress
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X-ray structural studies on solubility of Fe substituted CuO

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Abstract

CuO is a promising material for the spintronic industry for which lattice distortions/defects play an important role in determining its magnetic and various other physical properties. The ionic radii and charge of Cu2+[VI] (0.73 Å) and Fe3+[VI] (0.64 Å) are quite different. Hence high Fe substitution in CuO in place of Cu may generate strain/distortions. Fe substitution may enhance magnetic properties, even at room temperature, making such materials interesting for device applications. A detailed structural study on Fe incorporated CuO lattices to confirm phase purity, supported by evidence of the absence of a secondary phase is absolutely essential especially when considering a considerable substitution of up to ∼12.5%. The electronic valence state, fine structure and local neighborhood/geometry of constituent elements need to be investigated using synchrotron based X-ray absorption spectroscopy (XAS). We report, for the first time, such a detailed study on understanding this magnetically and electronically important material: Cu1−xFexO, 0 ≤ x ≤ 0.125.

Graphical abstract: X-ray structural studies on solubility of Fe substituted CuO

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Publication details

The article was received on 05 Sep 2016, accepted on 21 Oct 2016 and first published on 21 Oct 2016


Article type: Paper
DOI: 10.1039/C6RA22255B
Citation: RSC Adv., 2016,6, 103571-103578
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    X-ray structural studies on solubility of Fe substituted CuO

    M. Nasir, N. Patra, D. K. Shukla, D. Bhattacharya, S. Kumar, D. M. Phase, S. N. Jha, S. Biring, P. M. Shirage and S. Sen, RSC Adv., 2016, 6, 103571
    DOI: 10.1039/C6RA22255B

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