TY - GEN
T1 - Dynamic structure of liquid Se, Te and Se-Te mixtures by neutron scattering measurements
AU - Chiba, Ayano
AU - Yao, Makoto
AU - Ohmasa, Yoshinori
AU - Taylor, Jon
AU - Bennington, Stephen M.
N1 - Publisher Copyright:
© 2004 American Institute of Physics.
PY - 2004/4/30
Y1 - 2004/4/30
N2 - Inelastic neutron scattering measurements are performed to investigate the dynamic structure of liquid Se, Te, and Te50Se50. The bond-stretching modes for liquid Se and Te50Se50 (both are in the semiconducting phase) are clearly observed at higher-energy regions than that for their trigonal phase. This shift is a reflection of their pronounced molecular-like properties without prominent inter-molecular interactions, whereas the vibrational modes for liquid Te (in the metallic phase) show its metallic-like bonding character with remarkable inter-molecular interactions. We thus observed a change in dynamic structure that accompanies the semiconductor-to-metal transition; the change that would be related to the slow dynamics induced by the transition.
AB - Inelastic neutron scattering measurements are performed to investigate the dynamic structure of liquid Se, Te, and Te50Se50. The bond-stretching modes for liquid Se and Te50Se50 (both are in the semiconducting phase) are clearly observed at higher-energy regions than that for their trigonal phase. This shift is a reflection of their pronounced molecular-like properties without prominent inter-molecular interactions, whereas the vibrational modes for liquid Te (in the metallic phase) show its metallic-like bonding character with remarkable inter-molecular interactions. We thus observed a change in dynamic structure that accompanies the semiconductor-to-metal transition; the change that would be related to the slow dynamics induced by the transition.
UR - https://www.scopus.com/pages/publications/85048171870
UR - https://www.scopus.com/pages/publications/85048171870#tab=citedBy
U2 - 10.1063/1.1764195
DO - 10.1063/1.1764195
M3 - Conference contribution
AN - SCOPUS:85048171870
T3 - AIP Conference Proceedings
SP - 436
EP - 437
BT - Slow Dynamics in Complex Systems
A2 - Tokuyama, Michio
A2 - Oppenheim, Irwin
PB - American Institute of Physics Inc.
T2 - 3rd International Symposium on Slow Dynamics in Complex Systems
Y2 - 3 November 2003 through 8 November 2003
ER -