Acoustic Phonon Softening and Spontaneous Strains in KD_3(SeO_3)_2

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概要

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• Ultrasonic velocities at 5 atad 10 MHz and spontaneous strains of KD.(Se0,).were measured and the results were compared with thc>se for KH.(Se0.)..Elastic constants were obtained from the velocity data. The phase transition ofKD.(Se0.). accompanies an instability of the soft sg,? mode alone, as in the caseof KH.(Se0.).. Deuteration yields no significant isotope effect in the Curie-Weissconstant C, although it gives large isotope effect in the transition temperature T..

• 社団法人日本物理学会の論文
• 1978-01-15

著者

• Arai Masazumi

  Kyushu University

• Arai M

  Computational Materials Science Center National Institute For Materials Science

• Osaka T

  Tokyo Univ. Sci. Tokyo

• Osaka Toshio

  Department Of Applied Physics Faculty Of Science Tokyo University Of Science

• Osaka Toshio

  Department Of Applied Physics Tokyo University Of Science

• Osaka Toshio

  Department Of Applied Physics Faculty Of Science Science University Of Tokyo

• Komukae Masaru

  Department Of Applied Physics Tokyo University Of Science

• MAKITA Yasuharu

  Department of Applied Physics,Faculty of Science,Science University of Tokyo

• Arai Masatoshi

  Physics Department Tohoku University:argonne National Loboratory

• Miyazaki A

  Department Of Applied Physics Faculty Of Science Science University Of Tokyo

• Miyazaki Akio

  Department Of Applied Physics Faculty Of Science Science University Of Tokyo:chiba High School

• Makita Yasuharu

  Department Of Applied Physics Faculty Of Science Science University Of Tokyo

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