Theory of Photoinduced Phase Transitions
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- YONEMITSU Kenji
- Institute for Molecular Science
Bibliographic Information
- Other Title
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- 光誘起相転移の理論
- 光誘起相転移の理論--コヒーレント振動と過渡状態
- ヒカリ ユウキ ソウテンイ ノ リロン コヒーレント シンドウ ト カト ジョウタイ
- Coherent Oscillations and Transient States
- コヒーレント振動と過渡状態
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Description
Theoretical understanding of photoinduced phase transitions and their dynamics is reviewed from the viewpoint of coherent oscillations and transient states in condensed molecular materials with quasi-one-dimensional electronic conduction. In the mixed-stack organic charge-transfer compound TTF-CA (TTF: tetrathiafulvalene, CA: chloranil), the photoinduced transition from the ionic phase to the neutral phase is accompanied with coherent motion of a neutral-ionic domain boundary. Its high cooperativity is realized by the sufficiently strong, interchain Coulomb coupling in the ionic phase. In the quarter-filled-band organic salt (EDO-TTF) 2PF6 (EDO: ethylenedioxy), the photoinduced melting of charge order is accompanied with oscillations in transient reflectivity. The degree of coherence in these oscillations depends on the probe photon energy. It is caused by different space and time scales of observed electronic motion and relevant phonon motion.
Journal
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- The Review of Laser Engineering
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The Review of Laser Engineering 36 (6), 343-348, 2008
The Laser Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204646324864
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- NII Article ID
- 10021105942
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- NII Book ID
- AN00255326
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- COI
- 1:CAS:528:DC%2BD1cXovFOnsr4%3D
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- ISSN
- 13496603
- 03870200
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- NDL BIB ID
- 9550646
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed