Rotation-translation coupling in (NH4I)(0.5)(KI)(0.5)

Authors
Ohl, M Mayr, F Reehuis, M Schmidt, W Loidl, A
Citation
M. Ohl et al., Rotation-translation coupling in (NH4I)(0.5)(KI)(0.5), PHYSICA B, 276, 2000, pp. 471-472
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
276
Year of publication
2000
Pages
471 - 472
Database
ISI
SICI code
0921-4526(200003)276:<471:RCI(>2.0.ZU;2-4
Abstract
Inelastic neutron scattering experiments have been performed to study the t emperature dependence of the LA-phonon frequency and the intensity of the q uasielastic component in the orientational glass (NH4I)(0.5)(KI)(0.5). The results can be explained assuming a coupling of the translational phonon mo des to the orientational degrees of freedom. Deviations of the experimental results from model predictions signal the onset of glassy freezing. (C) 20 00 Elsevier Science B.V. All rights reserved.