Controllable Optical Bistability in a Crystal of Molecular Magnets System

We investigate the formation of optical bistability （OB） in a crystal of molecular magnets contained in a unidirectional ring cavity. The crystal is subjected to one dc magnetic field and two （probe and coupling） ac resonant magnetic field. The results show that OB can be controlled efficiently by adjusting the intensity of the control field, the detuning of probe magnetic field and the cooperation parameter, Furthermore, within certain parameter range, the optical multistablity （OM） can also be observed in the crystal medimn. This＇ investigation can be used for designing new types of nonelectronic devices for realizing switching process.

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变、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。