| Project/Area Number |
24740194
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | University of Tsukuba |
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Principal Investigator |
MORI Tatsuya 筑波大学, 数理物質系, 助教 (30598074)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | フォノン物性 / テラヘルツ時間領域分光 / 熱電材料 / 誘電体 / ソフトマター |
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| Research Abstract |
Some of the clathrate compounds exhibit a characteristic behavior which is found in the glass universally, in the temperature dependence of the thermal conductivity and specific heat, in spite of the crystals. To clarify the behavior of the rattling phonon which is a low-frequency large-amplitude vibration of atoms encapsulated in the large cage, type-VIII Ba8Ga16Sn30 has been investigated using terahertz time-domain spectroscopy (THz-TDS).
In addition, as a development of THz spectroscopy techniques, a new correction method of phase shift error in the experiment of a reflection THz-TDS has been established using the data obtained by a transmission THz-TDS.
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