Abstract
Vibrational spectra of α-MnH0.07 and α-MnD0.05 were studied by inelastic neutron scattering at temperatures from 1.7 to 200 K over a wide range of energy and momentum transfers. Together with the high-energy bands of the optical vibrations, pronounced peaks at 6.3 and 1.6 meV were observed in the spectra of the samples loaded with H and D, respectively. The study of the temperature, momentum-transfer and isotope dependence of the spectra demonstrated the tunnelling origin of these peaks.
Original language | English |
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Pages (from-to) | 421-423 |
Number of pages | 3 |
Journal | Physica B: Physics of Condensed Matter |
Volume | 263-264 |
DOIs | |
State | Published - Mar 1999 |
Externally published | Yes |
Event | Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 - Lancaster, Great Britain Duration: Jul 26 1998 → Jul 31 1998 |
Funding
We thank the EPSRC for access to the ISIS pulsed neutron source. The work was supported by the Grants No. 96-02-17522 and 96-15-96806 from the Russian Foundation for Basic Research.