Cooperative Phenomena and Domain Switching Processes in Organic Inclusion Compounds

9619191 Hollingsworth这项题为《有机包合物中的合作现象和结构域转换过程》的提案的重点是对固体中的合作作用的分子理解，特别是关于在外加各向异性应力(铁弹性)下经历宏观结构域重新取向的一系列包合物的设计、合成和表征。该研究计划将在分子水平上解决控制晶体中结构域转换过程的是什么，铁弹性的机制是什么，以及速度决定步骤是什么。由于铁弹性和铁电性是如此紧密地联系在一起，强调铁弹性性质的协同决定因素应该对铁电材料中的磁畴转换过程提供重要的见解。铁电包合物的设计和合成将提供新的材料，由于它们对客体分子重新定向的快速时间标度，应该使它们作为快速切换的电光材料引起人们的高度兴趣。***

9619191 Hollingsworth The focus of this proposal entitled Cooperative Phenomena and Domain Switching Processes in Organic Inclusion Compounds is on a molecular understanding of cooperative interactions in solids, and in particular on the design, synthesis and characterization of a series of inclusion compounds that undergo macroscopic domain reorientation under applied anisotropic stress (ferroelasticity). The research program will address on a molecular level what it is that controls domain switching processes in crystals, what are the mechanisms of ferroelasticity, and what the rate determining steps are. Because ferroelasticity and ferroelectricity are so closely related, the emphasis on cooperative determinants of ferroelastic properties should provide important insights into the domain switching processes in ferroelectric materials. %%% The design and synthesis of ferroelectric inclusion compounds will provide new materials, which because of their fast timescale for guest molecular reorientation, should make them of high interest as rapidly switching electrooptical materials. ***