THE DIFFUSION OF H-2 IN HEXAGONAL ICE AT LOW-TEMPERATURES

Authors
STRAUSS HL CHEN Z LOONG CK
Citation
Hl. Strauss et al., THE DIFFUSION OF H-2 IN HEXAGONAL ICE AT LOW-TEMPERATURES, The Journal of chemical physics, 101(8), 1994, pp. 7177-7180
Citations number
24
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
101
Issue
8
Year of publication
1994
Pages
7177 - 7180
Database
ISI
SICI code
0021-9606(1994)101:8<7177:TDOHIH>2.0.ZU;2-9
Abstract
The diffusion of hydrogen molecules in hexagonal D2O ice (Ih) in the t emperature range of 25-60 K was investigated by quasielastic neutron s cattering. The observed spectra consist of a narrow elastic peak and a broad quasielastic component. The single-particle diffusion coefficie nt for H-2 in D2O ice was obtained using a simple model of diffusion a nd is remarkably high-comparable to;he coefficient of H-2 in a liquid.