2010 Fiscal Year Final Research Report
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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| 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 |
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| 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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