Dynamic structure of liquid Se, Te and Se-Te mixtures by neutron scattering measurements

Ayano Chiba, Makoto Yao, Yoshinori Ohmasa, Jon Taylor, Stephen M. Bennington

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルSlow Dynamics in Complex Systems
ホスト出版物のサブタイトル3rd International Symposium on Slow Dynamics in Complex Systems
編集者Michio Tokuyama, Irwin Oppenheim
出版社American Institute of Physics Inc.
ページ436-437
ページ数2
ISBN(電子版)0735401837
DOI
出版ステータスPublished - 2004 4 30
外部発表はい
イベント3rd International Symposium on Slow Dynamics in Complex Systems - Sendai, Japan
継続期間: 2003 11 32003 11 8

出版物シリーズ

名前AIP Conference Proceedings
708
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other3rd International Symposium on Slow Dynamics in Complex Systems
国/地域Japan
CitySendai
Period03/11/303/11/8

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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