Neutron spectroscopy of  fullerite hydrogenated under high pressure; evidence for interstitial molecular hydrogen

doi:10.1088/0953-8984/9/13/022

Neutron spectroscopy of fullerite hydrogenated under high pressure; evidence for interstitial molecular hydrogen

Author

A I Kolesnikov , V E Antonov , I O Bashkin , G Grosse , A P Moravsky ^§, A Yu Muzychka ^||, E G Ponyatovsky and F E Wagner

Affiliations

Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow District, Russia
Physics Department E15, Technical University of Munich, D-85747 Garching, Germany
^§ Institute of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow District, Russia
^|| Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Moscow District, Russia

Journal

Journal of Physics: Condensed Matter Create an alert RSS this journal

Issue

Volume 9, Number 13

Citation

A I Kolesnikov et al 1997 J. Phys.: Condens. Matter 9 2831

doi: 10.1088/0953-8984/9/13/022

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Abstract

Inelastic neutron scattering spectra of a hydrofullerite quenched after synthesis at 620 K under a hydrogen pressure of 0.6 GPa, and of the same sample after annealing at 300 K for 35 h, which reduced the hydrogen content by molecules per unit, were measured at 85 K. The quenched sample is shown to consist of molecules with and of interstitial molecular hydrogen. The interstitial molecular hydrogen left the sample during annealing at room temperature, whereas the molecules were stable at this temperature. The intramolecular and intermolecular vibrations of and in the fullerite are discussed in view of the measured spectra.

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