Abstract
We have carried out quasielastic neutron scattering measurements on liquid tellurium (l-Te) at 460°C, and inelastic neutron scattering measurements on trigonal tellurium (t-Te) at 400°C, supercooled l-Te at 400°C and l-Te at 467°C. The quasielastic scattering peak is comparatively narrow at momentum transfer Q =2.0 A -1 where the first peak of the static structure factor is seen. The vibrational density of states (V-DOS) of supercooled l-Te has a three-band structure similar to that of t-Te, indicating that the chain structure is preserved in the liquid state. The V-DOS of l-Te changes remarkably with temperature, which strongly demonstrates the modification of chain structure in the liquid state.
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