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Manifesto for a higher Tc

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The term 'high-temperature superconductor' used to refer only to copper-based compounds — now, iron-based pnictides have entered the frame. The comparison of these two types of superconductor is revealing, and suggestive of what might be needed to achieve even higher transition temperatures.

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Figure 1: Schematic phase diagrams of the cuprates and pnictides on hole- or electron-doping2,3,4.
Figure 2: Characteristic energy scales for fermionic and bosonic excitations, electronic kinetic energy Kexp, superfluid density and superconducting energy gap in cuprates (red boxes) and Fe-based materials (blue boxes).
Figure 3: Schematics of two-dimensional cross-sections of Fermi surfaces (FSs) for cuprates and pnictides.
Figure 4: Superfluid density in exotic superconductors.

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Acknowledgements

A.V.C. is supported by the NSF. D.N.B. is supported by the NSF, AFOSR and DOE.

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Authors and Affiliations

  1. D. N Basov is in the Department of Physics, 9500 Gilman Drive, La Jolla, California 92093-0319, USA,

    D. N. Basov

  2. Andrey V. Chubukov is in the Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706, USA.,

    Andrey V. Chubukov

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  1. D. N. Basov
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  2. Andrey V. Chubukov
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Correspondence to D. N. Basov or Andrey V. Chubukov.

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Basov, D., Chubukov, A. Manifesto for a higher Tc. Nature Phys 7, 272–276 (2011). https://doi.org/10.1038/nphys1975

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