Dynamics of liquid CCl<sub>4</sub> from quasi-elastic neutron scattering
F J Bermejo; M Alvarez; M Garcia-Hernandez; F Mompean; R P White; W S Howells; C J Carlile; E Enciso; F Batallan; F J Bermejo; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; M Alvarez; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; M Garcia-Hernandez; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; F Mompean; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; R P White; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; W S Howells; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; C J Carlile; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; E Enciso; Inst. de Estructura de la Mater., CSIC, Madrid, Spain; F Batallan; Inst. de Estructura de la Mater., CSIC, Madrid, Spain
Журнал:
Journal of Physics: Condensed Matter
Дата:
1991-02-18
Аннотация:
Medium- ( Delta E=50 mu eV) and high-resolution ( Delta E=15 mu eV) neutron quasi-elastic scattering spectra of liquid CCl<sub>4</sub> at two temperatures within the liquid range are reported. The (mostly coherent) dynamical structure factors are analysed in terms of a model which takes into account the effects of the liquid structure on the single-particle dynamics, and extends the usual rotational diffusion approximations. Such an extension was found to be necessary in order to reconcile the measured dynamical parameters with those available from NMR relaxation.
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