Two-Stage Nonadiabatic Dynamics of Photoinduced Nucleation

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  • 光誘起構造変化初期における非断熱核形成2段階ダイナミクス
  • ヒカリ ユウキ コウゾウ ヘンカ ショキ ニ オケル ヒダンネツカク ケイセイ 2 ダンカイ ダイナミクス

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Abstract

<p>Theoretical study on the initial dynamics of photoinduced nucleation is reviewed. Employing a model of localized electrons coupled with an optical phonon mode, we numerically calculated the dynamics of photoinduced nuclei. The multifractal analysis on the geometric patterns of their boundary is suitable for understanding the dynamics of adiabatic/non-adiabatic electronic transitions during the first picoseconds after photoexcitation. We revealed that the photoinduced nucleation starts with two different processes; formation of photoinduced nuclei by rearrangement of the Franck-Condon states and their growth with coalescence of each other. This two-stage dynamics of nucleation is characteristic of the initial processes of photoinduced cooperative phenomena.</p>

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  • Butsuri

    Butsuri 71 (7), 474-479, 2016

    The Physical Society of Japan

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