Abstract
The high energy γ-ray attenuation and sound velocity have been measured to investigate the bonding nature and structural changes in liquid Ge-Te system. The results have been used to deduce the molar volume and adiabatic compressibility. The volume for Te rich alloys around the eutectic composition shows anomalous increase as the liquidus temperature is approached. Correspondingly the thermal expansion coefficient and adiabatic compressibility show very sharp extrema at around 400°C, which indicates that rapid structural changes occur in the liquid. At high temperatures, the composition dependences of the volume and compressibility show small positive deviation from the linear interpolations where anomalies in the magnetic susceptibility and electrical properties have been found.
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