Coherent dynamics of photoinduced nucleation processes

Details Coherent dynamics of photoinduced nucleation processes Coherent dynamics of photoinduced nucleation processes

2007-05-07

arxiv.org/abs/0705.0859v1

Phys. Rev. B76, 014302 (2007)

Physics

Condensed Matter

Materials Science

14 pages, 5 figures

Scientific paper

10.1103/PhysRevB.76.014302

We study the dynamics of initial nucleation processes of photoinduced structural change of molecular crystals. In order to describe the nonadiabatic transition in each molecule, we employ a model of localized electrons coupled with a fully quantized phonon mode, and the time-dependent Schr\"odinger equation for the model is numerically solved. We found a minimal model to describe the nucleation induced by injection of an excited state of a single molecule in which multiple types of intermolecular interactions are required. In this model coherently driven molecular distortion plays an important role in the successive conversion of electronic states which leads to photoinduced cooperative phenomena.

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