TEMPERATURE-DEPENDENCE OF COLLECTIVE EXCITATIONS IN LIQUID DEUTERIUM STUDIED BY NEUTRON INELASTIC-SCATTERING

Authors
MOMPEAN FJ BERMEJO FJ GARCIAHERNANDEZ M FAK B MARTINEZ JL SENGER G RISTIG ML
Citation
Fj. Mompean et al., TEMPERATURE-DEPENDENCE OF COLLECTIVE EXCITATIONS IN LIQUID DEUTERIUM STUDIED BY NEUTRON INELASTIC-SCATTERING, Journal of physics. Condensed matter, 5(32), 1993, pp. 5743-5754
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
5
Issue
32
Year of publication
1993
Pages
5743 - 5754
Database
ISI
SICI code
0953-8984(1993)5:32<5743:TOCEIL>2.0.ZU;2-O
Abstract
The inelastic response from liquid deuterium has been measured on a th ermal three-axis neutron spectrometer at two different temperatures. T he observed neutron scattering spectra show clear inelastic features w hich have been analysed using a damped harmonic oscillator (DHO) model . The momentum transfer dependences of the DHO frequencies and damping coefficients at each temperature are compared and related to the resu lts of the correlated density matrix formalism.