Phase III of solid methane: The orientational potential and rotational tunneling
✍ Scribed by Hüller, Alfred; Prager, Michael; Press, Werner; Seydel, Tilo
- Book ID
- 120976103
- Publisher
- American Institute of Physics
- Year
- 2008
- Tongue
- English
- Weight
- 479 KB
- Volume
- 128
- Category
- Article
- ISSN
- 0021-9606
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## Abstract Neutron scattering spectra from methane molecules adsorbed on a surface of graphite were observed by Newbery et al. They found four inelastic peaks in the temperature range lower than 30°K and assigned them to transitions between rotational tunneling states of methane molecules. This sy
The far-infrared spectrum of phases III and IV of solid CH4 have been investigated. Five bands were observed in phase III. Discontinuous changes in the linewidths and the emergence of a new band arc associated with the transition to phase IV. On the basis of the measured Griineisen parameters, the b