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Iron-based superconductors

Unity or diversity?

Does the high-temperature superconductivity observed in the newly discovered iron pnictides represent another example of the same essential physics responsible for superconductivity in the cuprates, or does it embody a new mechanism?

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Figure 1: Phase diagrams of the iron pnictide and cuprate high-temperature superconductors.

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Kivelson, S., Yao, H. Unity or diversity?. Nature Mater 7, 927–928 (2008). https://doi.org/10.1038/nmat2325

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