Lattice dynamics and the diffuse phase transition of lithium sulphide investigated by coherent neutron scattering

Bührer, W.; Altorfer, Felix; Mesot, J.; Bill, Hans; Carron, Pierre-Louis Germain; Smith, H.G.

doi:10.1088/0953-8984/3/9/002

Scientific article

English

Lattice dynamics and the diffuse phase transition of lithium sulphide investigated by coherent neutron scattering

ContributorsBührer, W.; Altorfer, Felix; Mesot, J.; Bill, Hans; Carron, Pierre-Louis Germain; Smith, H.G.

Published inJournal of physics. Condensed matter, vol. 3, no. 9, p. 1055-1064

Publication date1991

Abstract

Elastic neutron diffraction of Li2S, measured as a function of temperature, shows the onset of a diffuse phase transition near 900 K to a highly conducting state. Inelastic neutron scattering has been used to investigate the harmonic lattice dynamics of Li2S at 15 K. A shell model has been successfully fitted to the data. The dynamical properties are computed within the harmonic approximation and compared with experimental data.

Affiliation

Faculté des sciences / Section de chimie et biochimie / Département de chimie physique

Research group

Groupe Bill

Citation (ISO format)

BÜHRER, W. et al. Lattice dynamics and the diffuse phase transition of lithium sulphide investigated by coherent neutron scattering. In: Journal of physics. Condensed matter, 1991, vol. 3, n° 9, p. 1055–1064. doi: 10.1088/0953-8984/3/9/002

Identifiers

PID : unige:3038
DOI : 10.1088/0953-8984/3/9/002

Commercial URLhttp://www.iop.org/EJ/article/-search=3972061.9/0953-8984/3/9/002/cm910902.pdf

ISSN of the journal0953-8984

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Lattice dynamics and the diffuse phase transition of lithium sulphide investigated by coherent neutron scattering

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