Alkali Intercalated C60: NMR and Magnetic Susceptibility Studies |
| F. Rachdia, C. Gozea, J. Reichenbacha, J. Lukyanchuka,b, N. Kirovaa,b, G. Zimmerc, M. Mehringc and P. Moliniéd aGroupe de Dynamique des Phases Condensées, case 26, Université Montpellier 2, 34095 Montpellier, France bL.D. Landau Institute for Theoretical Physics, Moscow, Russia c2. Physikalisches Institut, Universität Stuttgart, W-70550 Stuttgart, Germany dLaboratoire de Physique Cristalline, Institut des Matériaux de Nantes, 44072 Nantes, France |
| Full Text PDF |
| We report on 13C NMR measurements on potassium intercalated C60 compounds. By using high resolution NMR technique we were able to characterize the different thermodynamically stable phases. The effects of the intercalation on the molecular dynamics as well as on the electronic properties will be discussed. We also performed the magnetic susceptibility measurements on Rb4C60 compound, which reveal the activation temperature behavior with the activation energy about 1200 K. By comparison with the NMR and ESR data of the same sample we conclude that the additional electrons are localized on the C60 molecule and form the spin singlet ground state. |
| DOI: 10.12693/APhysPolA.87.861 PACS numbers: 76.60.-k, 74.70.Wz |