Lattice dynamics and structure of GeTe, SnTe and PbTe
SERGUEEV, Ilya
Jülich Centre for Neutron Science [JCNS - PGI, JARA-FIT]
European Synchrotron Radiation Facility [ESRF]
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Jülich Centre for Neutron Science [JCNS - PGI, JARA-FIT]
European Synchrotron Radiation Facility [ESRF]
SERGUEEV, Ilya
Jülich Centre for Neutron Science [JCNS - PGI, JARA-FIT]
European Synchrotron Radiation Facility [ESRF]
Jülich Centre for Neutron Science [JCNS - PGI, JARA-FIT]
European Synchrotron Radiation Facility [ESRF]
MÜLLER, Eckhard
DLR Institut für Werkstoff-Forschung / Institute of Materials Research
Institute of Inorganic and Analytical Chemistry
< Reduce
DLR Institut für Werkstoff-Forschung / Institute of Materials Research
Institute of Inorganic and Analytical Chemistry
Language
en
Article de revue
This item was published in
physica status solidi (b). 2013, vol. 250, n° 7, p. 1300-1307
Wiley
English Abstract
The lattice dynamics in the IV-VI compounds GeTe, SnTe and PbTe were studied by 125Te and 119Sn nuclear inelastic scattering and the obtained partial density of phonon states were compared with published theoretical ...Read more >
The lattice dynamics in the IV-VI compounds GeTe, SnTe and PbTe were studied by 125Te and 119Sn nuclear inelastic scattering and the obtained partial density of phonon states were compared with published theoretical calculations. The phase purity and structure were characterized by high energy X-ray diffraction. The effect of the atomic arrangement, rhombohedral for GeTe and cubic for SnTe and PbTe, is visible in the density of phonon states. Vibrational properties are found to be in good agreement with available calculated data and the softer character of the NaCl-type structures in comparison with the rhombohedral GeTe is confirmed.Read less <
English Keywords
Chalcogenides
Phonons
Structure
Sound velocity
Origin
Hal imported