Neutron scattering studies of liquid tellurium–selenium mixtures

Abstract Neutron scattering experiments for liquid tellurium–selenium mixtures have been carried out in the semiconductor-to-metal transition range. The dynamic structure of liquid Te 50 Se 50 at three temperatures (semiconducting, transition and metallic regime) was measured. We also measured the dynamic structure factor of liquid Te (metallic regime) and liquid Te 40 Se 60 (semiconducting regime) at 500 °C. The vibrational density of states obtained by inelastic scattering studies confirmed that the gap between the bending and stretching modes is filled when the semiconductor-to-metal transition occurs.