Strong Superconductivity with Local Jahn-Teller Phonons in C60 Solids
J. E. Han, O. Gunnarsson, V. H. Crespi
DOI 10.1103/PhysRevLett.90.167006 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We analyze fulleride superconductivity at experimental doping levels, treating the electron-electron and electron-phonon interactions on an equal footing, and demonstrate that the Jahn-Teller phonons create a local (intramolecular) pairing which is surprisingly resistant to the Coulomb repulsion, despite the weakness of retardation in these low-bandwidth systems. The requirement for coherence throughout the solid then yields a very strong doping dependence to Tc, one consistent with experiment and much stronger than expected from standard Eliashberg theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| K3C60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 33 | Pressure not reported | unknown |
| Cs3C60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | unknown |
Similar papers
Enhancing superconductivity in A3C60 fullerides
similarity 0.95Minjae Kim et al.
Source status unknown — claims are unverified
Intercalant and Intermolecular Phonon Assisted Superconductivity in K-Doped Picene
similarity 0.94Michele Casula et al.
Source status unknown — claims are unverified
Electron-phonon coupling and superconductivity in alkali-intercalated C60 solid
similarity 0.94M. Schluter et al.
Source status unknown — claims are unverified
Electronic correlation effects in superconducting picene from ab initio calculations
similarity 0.94Gianluca Giovannetti & Massimo Capone
Source status unknown — claims are unverified
Designing high-Tc superconductors via Archimedean carbon cages and guest-host engineering
similarity 0.93Si-Yi Xiong et al.
Source status unknown — claims are unverified
Double-resonance NMR probes of structural distortions in alkali-metal-fulleride superconductors
similarity 0.93C. H. Pennington et al.
Source status unknown — claims are unverified