Neutron Scattering Study of Phonon Dispersion Relations along[110]in TlCl

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概要

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• The phonon dispersion relations of TICI along the [1104 direction have beenstudied by inelastic neutron scattering at 80 K, partly at 293 K. The energies offour zone-boundary phonons at the M(?, i, 0) point associated with the indirectband-gap transition between the [40, 0, f) and R(Iz, I, 1)) points were determined. The softening of the TA2 branch (e//[0014) was found around the zone-boundary. The zone-boundary phonon softens from 1.75 meV (293 K) to 1.28 meV(4.5 K). The mechanism of this phenomenon is discussed in connection with theCsCl-TIN or CsCI-NaCI type transitions which can be accomplished by a shearof the (110) planes corresponding to the TA. mode in the CsCl structure.

• 社団法人日本物理学会の論文
• 1978-04-15

著者

• FUJII Yasuhiko

  Institute for Solid State Physics, The University of Tokyo

• Jun′ichiro Nakahara

  Graduate School Of Science Hiroshima University

• Kobayashi Koichi

  Institute for Solid Physics, University of Tokyo

• HOSHINO Sadao

  Institute for Solid State Physics, The University of Tokyo

• Fujii Yasuhiko

  Institute For Solid State Physics The University Of Tokyo

• Hoshino Sadao

  Institute For Solid State Physics The University Of Tokyo

• SAKUMA Takashi

  Institute for Solid State Physics,The University of Tokyo

• NAKAHARA Junichiro

  Institute for Solid State Physics,The University of Tokyo

• FUJII Atsuhiro

  Department of Physics,Kumamoto University

• Nakahara Jun'ichiro

  Department Of Physics Faculty Of Science Hokkaido University

• Nakahara Jun'ichiro

  Institute For Solid State Physics The University Of Tokyo

• Fujii Yasuhiko

  Institute For Solid State Phsics The University Of Tokyo

• Fujii A

  Kumamoto Univ. Kumamoto

• Sakuma Takashi

  Institute For Solid State Physics The University Of Tokyo:department Of Physics Faculty Of Science I

• Fujii Atsuhiro

  Department Of Applied Physics Faculty Of Engineering Hiroshima

• Fujii Atsuhiro

  Department Of Applied Physics Faculty Of Engineering Hiroshima University

• Kobayashi Koichi

  Department Of Basic Sciences Ishinomaki Senshu University

• Hoshino Sadao

  Institute For Solid State Phsics The University Of Tokyo

• Kobayashi Koichi

  Institite For Solid State Physics University Of Tokyo

• Hoshino Sadao

  Institute for Solid State Physics,The University of Tokyo

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