光誘起相転移の理論

• 米満 賢治

  分子科学研究所理論・計算分子科学研究領域

書誌事項

タイトル別名

• Theory of Photoinduced Phase Transitions
• 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

抄録

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.

収録刊行物

• レーザー研究

  レーザー研究 36 (6), 343-348, 2008

  一般社団法人 レーザー学会

キーワード

• Coherent phonon
• Domain wall
• Neutral-ionic transition
• Charge order
• Metal-insulator transition

詳細情報

• CRID: 1390001204646324864
• NII論文ID: 10021105942
• NII書誌ID: AN00255326
• DOI: 10.2184/lsj.36.343
• COI: 1:CAS:528:DC%2BD1cXovFOnsr4%3D
• ISSN: 13496603
• ISSN: 03870200
• NDL書誌ID: 9550646
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9550646
• Web Site: https://www.jstage.jst.go.jp/article/lsj/36/6/36_343/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可