Phonon Dispersion Relations of Body-Centered Cubic Thallium and the bcc-to-hcp Martensitic Phase Transformation

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概要

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• Neutron-scattering measurement of the phonon dispersion relations has beencarried out for the body-centered cubic phase of thallium existing above 230'C.The T. mode propagating in the [110] direction vvith the [11-04 polarization hasbeen found to have extremely low energy. The low-lying mode at the zone boun-dary is related to the atomic clisplacements taking place in the bcc-to-hcp mar-tensitic phase transformation in this crystal. The lattice instability relevant tothe transformation is discussed on the basis of the interplaner force-constantanalysis of the T. mode dispersion relation.

• 社団法人日本物理学会の論文
• 1983-02-15

著者

• Iizumi Masashi

  Division Of Physics Japan Atomic Energy Research Institute

関連論文

• Neutron Small-Angle Scattering Study of the Decomposition of an Fe-Cr Alloy in the Unstable State
• Lattice Dynamics and Invar Properties in f.c.c FeMn Alloy
• Phonon Dispersion Relations of Body-Centered Cubic Thallium and the bcc-to-hcp Martensitic Phase Transformation

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