Exploitation of Organic Electronic Materials of Potential Dynamic Switches for Non-equilibrium Condensed Matter Sciences

我们探索了在光照射下表现出电子性质动态开关现象的有机材料。用时间分辨光谱和时间分辨X射线衍射技术研究了准平衡态的非平衡动力学。特别是在太赫兹频段，发展了新的光源和实验技术。在自旋交叉络合物和(EDO-TTF)_2PF_6中，我们发现在动力学过程中应该发生隐藏的对称性破缺。提出了一个描述非平衡动力学的简单唯象模型。

We have explored organic materials that show dynamic switching phenomena in electronic properties by light irradiation. Non-equilibrium dynamics of quasi-equilibrium states has been studied by time-resolved spectroscopies and time-resolved X-ray diffraction techniques. Especially, novel light sources and experimental techniques have been developed in terahertz frequency region. In spin-crossover complexes and (EDO-TTF)_2PF_6, we found that hidden symmetry breaking should take place in the dynamical process. A simple phenomenological model was proposed to describe non-equilibrium dynamics.