Inelastic neutron scattering study of the intermolecular vibrational modes of Ba4C60

✍ Scribed by K. Papagelis; J. Arvanitidis; K. Prassides; S. Margadonna

• Book ID: 104108390
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 275 KB
• Volume: 377
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/s0009-2614(03)01118-7

✦ Synopsis

We present inelastic neutron scattering measurements for the Ba 4 C 60 superconductor. The translational part of the phonon density-of-states is fairly broad compared to that of A 3 C 60 (A ¼ K, Rb) and extends to $17 meV. A lattice dynamical analysis using a phenomenological Born von K a arm a an model indicates stronger interactions between the intercalated Ba ions and the C 60 anions than those in alkali metal fullerides. The results are in accordance with the strong hybridisation of the Ba 5d and C 60 t 1g orbitals proposed by synchrotron X-ray diffraction measurements and ab initio calculations.