EPR test of the resonating-valence-bond theory of superconductivity in C60Kn
Abstract
EPR experiments on powder samples of C60Kn are presented. The results contradict the basic assumption of a negative Hubbard U, which has been used to explain the superconductivity in fullerenes. The apparent orbital nondegeneracy of the observed state is explained in terms of a generalized dynamic Jahn-Teller effect.
- Publication:
-
Physical Review B
- Pub Date:
- October 1992
- DOI:
- 10.1103/PhysRevB.46.8579
- Bibcode:
- 1992PhRvB..46.8579M
- Keywords:
-
- 74.30.Gn;
- 76.30.-v;
- Electron paramagnetic resonance and relaxation