Superconductivity and antiferromagnetism are in fierce competition in high-temperature superconductors. However, this competition has the unexpected benefit that the antiferromagnetism improves the capacity of the superconductor to resist magnetic fields.
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Zaanen, J. Technology meets quantum criticality. Nature Mater 4, 655–656 (2005). https://doi.org/10.1038/nmat1467
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DOI: https://doi.org/10.1038/nmat1467
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