自旋交叉配合现象与分子电子器件

自旋交叉配合物在热、压力或光诱导自旋交叉现象的同时会伴随着其它一些协同效应，比如配合物颜色的改革、存在着大的热滞后效应等，这些协同效应是单个分子或分子集合体作为热开关、光开关和信息存储元件材料的基础。因此，自旋交叉配合物是开发新型的热开关、光开关和信息存储元件材料的理想分子体系。本文概述了自旋交叉现象的研究历史、现状和未来的发展趋势。讨论了影响配合物自旋交叉性质的各种内在的和外部的因素，总结了目前用于研究自旋交叉现象的各种现代测试技术。最后，展望了自旋交叉配合物在分子电子器件方面的应用前景。

The Spin-crossover Phenomena and Molecular Electronic Device

The spin crossover phenomena, in which some transition metal complexes exhibit a transition between a low spin (LS) and a high spin (HS) state, might be accompanied by other cooperative effects such as color change and large thermal hysteresis loop etc. These complexes can be used as new types of molecular electronic device materials (thermal switch, optical switch and information memory medium) based on these cooperative effects. Therefore, spin crossover complexes are an ideal molecular system in which a single molecule or molecular aggregation acts as an element of thermal switch, optical switch or information memory. The history and present situation for spin crossover complexes are introduced in this paper briefly. The factors of influencing spin crossover property, modern measurement technologies and the applications of the spin crossover complexes in molecular electronic devices are also discussed, respectively.