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Introduction to Iron-Based Superconductors

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LaFeAs(O,F) Lindhard Function<br />

• Neglecting Matrix Elements:<br />

Im χ 0 /ω Re χ 0<br />

Scattering, Transport<br />

Magnetism, Superconductivity<br />

Note the pronounced peak at the zone corner.<br />

I.I. Mazin, D.J. Singh, M.D. Johannes and M.H. Du, PRL 101, 057003 (2008)

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