The discovery of a new class of high-temperature superconductors based on iron tests the limits of current theoretical and computational tools for the understanding of strongly correlated systems.
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Xu, C., Sachdev, S. The new iron age. Nature Phys 4, 898–900 (2008). https://doi.org/10.1038/nphys1137
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DOI: https://doi.org/10.1038/nphys1137
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