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Static and dynamic structures of liquid GeTe mixtures
Ist Teil von
Journal of non-crystalline solids, 2007-06, Vol.353 (18), p.1999-2003
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2007
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Neutron diffraction measurements of the liquid Ge–Te system and quasi- and inelastic neutron scattering experiments of the eutectic liquid Ge
15Te
85 were performed in the temperature range from 400 to 560
°C. The large temperature dependence of the static structure for liquid Ge
15Te
85 is reconfirmed; however it is found that the compositional dependence obtained at around 80
°C above the liquidus curve is rather small. The dynamic structure factors of liquid Ge
15Te
85 in the
Q-region from 0.2 to 2.6
Å
−1 show a normal temperature dependence. From the vibrational density of states, it is found that the Te–Te covalent bond persists in liquid Ge
15Te
85; however a bending mode was not assigned clearly.