PROTON DYNAMICS IN BETA-ALUMINA

Authors
COLOMBAN P FILLAUX F TOMKINSON J KEARLEY GJ
Citation
P. Colomban et al., PROTON DYNAMICS IN BETA-ALUMINA, Physica. B, Condensed matter, 213, 1995, pp. 634-636
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
213
Year of publication
1995
Pages
634 - 636
Database
ISI
SICI code
0921-4526(1995)213:<634:PDIB>2.0.ZU;2-M
Abstract
Inelastic neutron scattering spectra of proton-containing beta-alumina samples at 20 K are presented. They reveal well-defined bands below 2 000 cm(-1), some of them being very sharp. The spectrum of the less hy drated sample is dominated by bands of the oxonium (H3O+) ion. Force-f ield calculations reveal that the hydrogen-bond-free H3O+ ion has tetr ahedral symmetry.