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. 2016 Dec 21;6:39128. doi: 10.1038/srep39128

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Copyright © 2016, The Author(s)

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(a) For hole. (b) For electron. Filled squares: all the pairs are used. Open circles (overlapped with filled squares): pairs with H_ij < 0.1 meV are removed. Open diamonds: pairs with H_ij < 1.0 meV are removed. Upward open triangles: pairs with H_ij < 2.0 meV are removed. Downward open triangles: pairs with H_ij < 3.0 meV are removed.