Acoustic Phonon Dispersion in the Incommensurate Phase of SiO_2 (Quartz)
スポンサーリンク
概要
- 論文の詳細を見る
Ultrasonic and Brillouin scattering measurements were performed near the incommensurate (INC) transition of SiO_2 (quartz). The decrease of the LA sound velocity in the INC phase was found to be much less for 10 MHz than for 27 GHz, being remark-ably different from other crystals which undergo INC phase transitions. The dispersion in the INC phase can be well characterized by a simple Landau-Khalatnikov type relaxation with a relaxation time τ(T)=(2.6±0.5)×10^<-12>(T_i-T)^<-1> s. A small but critical decrease of the TA velocity as T→T_c(=T_i-1.4K) was also detected by the ultrasonic measurement.
- 社団法人日本物理学会の論文
- 1995-01-15
著者
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Abe Kohji
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Tanaka Eiichi
Department Of Mechanical Science And Engineering Nagoya University
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Tanaka E
Kyushu Univ. Fukuoka
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Shigenari Takeshi
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Shigenari Takeshi
Department O Engineering Physics The University Of Electro-communications
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Ishibashi Sayaka
Department of Applied Physics and Chemistry, The University of Electro-Communications
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Suzuki Masaru
Laboratory of Physics, The University of Electro-Communications
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Tanaka Eiichi
Department Of Mechanical Engineering Nagoya Univeisity
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Ishibashi Sayaka
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Suzuki Masaru
Laboratory Of Physics The University Of Electro-communications
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Suzuki Masaru
Laboratory Of Entomology Faculty Of Agriculture Hirosaki University
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Tanaka Eiichi
Department Of Applied Physics And Chemistry The University Of Electro-communications
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