Study of photoinduced phase transitions with time-resolved Raman, infrared and terahertz spectroscopies
| Project/Area Number |
20340073
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SUEMOTO Tohru The University of Tokyo, 物性研究所, 教授 (50134052)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAJIMA Makoto 東京大学, 物性研究所, 助教 (40361662)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2010: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2009: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Keywords | 光誘起相転移 / ラマン散乱 / 赤外分光 / テラヘルツ分光 / ダイナミクス |
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| Research Abstract |
Dynamics of the photoinduced phase transitions (PIPT) in cyano-bridged complexes was studied by using Raman scattering and infrared absorption spectroscopy. We found emergence of a large amount of boundary components associated with PIPT. It has been found that the initial phase disappears and the boundary component appears within 1 ps and that these states are stable for more than 100 ps. We succeeded in controlling the spin precession motion in ortho-ferrite by using the magnetic field component of the terahertz electromagnetic wave at very low incident energy.
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Report
(4 results)
Research Products
(58 results)
