Transport and vibrational properties of pressure polymerized C60
1998 (English)In: Molecular Materials (Molecular Crystals and Liquid Crystals, Section C), vol. 11: Proceedings of the 3rd International Workshop on Fullerenes and Atomic Clusters (IWFAC'97), St. Petersburg 1997, Amsterdam: Overseas Publishers Association , 1998, 1-6 p.Conference paper (Refereed)
The vibrational spectrum of polycrystalline C60 polymerized at 1.1 GPa and 585 K was studied by inelastic neutron scattering. We find drastic changes in the spectrum compared to the vibrational spectrum of pristine C60: the appearance of a new, broad vibrational band at low energies, and splitting and significant changes in the peak positions of various modes. The thermal conductivity lambda of polymerized C60 was measured in the temperature range 150-320 K and was found to increase with a rise in temperature, which reflects strong phonon scattering. A high degree of structural disorder in the crystalline lattice of the polymeric phase is most probably responsible for the glass-like beahviour of lambda(T).
Place, publisher, year, edition, pages
Amsterdam: Overseas Publishers Association , 1998. 1-6 p.
, Molecular materials, ISSN ISSN 1058-7276 ; 11
Fullerenes, C60, high pressure synthesis, fullerene polymer, polymerization, thermal conductivity, glass-like behaviour, phonon spectrum, inelastic neutron scattering, vibrational spectrum
Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-23455OAI: oai:DiVA.org:umu-23455DiVA: diva2:224237