NEUTRON STUDY OF DYNAMICS OF SOLID HYDROGEN UNDER PRESSURE

Authors
ISHMAEV SN KOBELEV GV SADIKOV IP SUKHOPAROV VA CHERNYSHOV AA TELEPNEV AS VINDRYAEVSKII BA SHITIKOV YL
Citation
Sn. Ishmaev et al., NEUTRON STUDY OF DYNAMICS OF SOLID HYDROGEN UNDER PRESSURE, Physica. B, Condensed matter, 234, 1997, pp. 30-31
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
234
Year of publication
1997
Pages
30 - 31
Database
ISI
SICI code
0921-4526(1997)234:<30:NSODOS>2.0.ZU;2-W
Abstract
The phonon density of states g(E) of solid parahydrogen is determined from the inelastic incoherent neutron scattering and total cross-secti on versus energy measurements at pressures up to 1.06 GPa. The very an harmonic phonon spectra with long ''tails'' and integral parameters ve rsus density were obtained. The role of zero-point vibrations in latti ce dynamics of p-H-2 quantum crystal remains significant in the invest igated region, over which its density is almost doubled.