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. 2016 Sep 2;7:12697. doi: 10.1038/ncomms12697

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Copyright © 2016, The Author(s)

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(a) Sn K-edge extended XAFS oscillation function k³χ(k), (b) the corresponding Fourier transforms FT(k³χ(k)) for the graphene confined Sn quantum sheets, 15 nm Sn nanoparticles and bulk Sn, respectively.