Quasielastic Neutron Scattering of Liquid Te_<50>Se_<50> in the Semiconductor-to-Metal Transition Range

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概要

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• We have carried out neutron scattering experiments for liquid Te_<50>Se_<50> at 700 K (semiconducting regime), 900 K (transition regime) and 1100 K (metallic regime). The quasielastic scattering peak is comparatively narrow at the peak positions of S (Q). A remarkable increase in the peak width is observed near the first minimum of S (Q), when the semiconductor-to metal transition occurs. Since the first peak of S (Q) in this system proves to mainly reflect the inter-chain correlation and the second peak to the intrachain correlation, the observed broadening may suggest frequent bond-switching between the chains in the metallic regime.

• 社団法人日本物理学会の論文
• 2002-02-15

著者

• KAWAKITA Yukinobu

  Department of Physics, Faculty of Sciences, Kyushu University

• OHMASA Yoshinori

  Department of Physics, Graduate School of Science, Kyoto University

• YAO Makoto

  Department of Physics, Graduate School of Science, Kyoto University

• Yao Makoto

  Department Of Physics Faculty Of Science Kyoto University

• Petrenko O

  Rutherford Appleton Laboratory

• Kawakita Yukinobu

  Department Of Physics Faculty Of Science Kyushu University

• CHIBA Ayano

  Department of Physics, Graduate School of Science, Kyoto University

• PETRENKO Oleg

  Rutherford Appleton Laboratory

• Chiba A

  Department Of Physics Graduate School Of Science Kyoto University

• Ohmasa Yoshinori

  Department Of Physics Graduate School Of Science Kyoto University

• KAWAKITA Yukinobu

  Department of Physics, Faculty of Science, Kyushu University

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