Author/Authors :
Krivnov، نويسنده , , V.Ya. and Shamovsky، نويسنده , , I.L. and Tornau، نويسنده , , E.E. and Rosengren، نويسنده , , A.، نويسنده ,
Abstract :
Electron-correlation effects in fullerene molecule are investigated in the framework of the Hubbard-Peierls model using the Gutzwiller approximate method. The influence of these effects on lattice distortions and pairing is studied. It is shown that the strongest pair-binding is realized for non-interacting case. Electron-electron interactions suppress the tendency to Jahn-Teller distortion and destroy the pairing. Our results provide strong evidence for the importance of Jahn-Teller distortion in the pairing mechanism of superconductivity in alkali-doped C60.
