Generation and control of coherent second sound in quantum paraelectrics
| Project/Area Number |
21740218
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tohoku University |
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Principal Investigator |
KOREEDA Akitoshi Tohoku University, 大学院・理学研究科, 助教 (40323878)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 量子常誘電体 / 第二音波 / 光散乱 / 誘導光散乱 / ブリルアン散乱 / フォノン / 非平衡熱力学 / レーザー分光 / コヒーレントフォノン / 熱伝導 / チタン酸ストロンチウム / タンタル酸カリウム |
|---|
| Research Abstract |
A more systematic analyzing method for light-scattering spectrum has been developed basing on non-equilibrium thermodynamics, in order to optically generate the temperature wave (second sound) in quantum paraelectrics. Also, combining spontaneous light-scattering and high-resolution stimulated Brillouin scattering, the normal and resistive relaxation times in phonon-phonon scattering, which are essential fundamental information for generation of second sound, have been determined.
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Report
(3 results)
Research Products
(32 results)
