Fullerene Superconductors

Authored by: Yoshihiro Iwasa , Kosmas Prassides

Handbook of Superconductivity

Print publication date:  July  2022
Online publication date:  July  2022

Print ISBN: 9781439817322
eBook ISBN: 9780429179181
Adobe ISBN:


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Nearly 30 years have passed since the discovery of superconductivity in potassium-doped C60 at 19 K. Now the critical temperature T c of fullerene superconductors has reached 38 K. This value is not only the highest among organic/molecule or carbon-based superconductors but also comparable to MgB2, and is only superseded by cuprate and iron-based superconductors at ambient pressure. This chapter is devoted to fundamental properties of fullerene superconductors, covering from the past understanding to the latest development. We review the crystal structures, electronic states of intercalation compounds, and their relation with the occurrence of superconductivity. We then discuss about the latest discovery of Cs3C60 and its properties with particular focus on the effect of strong electron correlation.

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