Magnetic and Photomagnetic Coordination Polymer Heterostructures

本项目由材料研究部（DMR）固态与材料化学（SSMC）项目支持。佛罗里达大学的Daniel Talham教授和他的同事将探索新的配位聚合物异质结构，以便更好地理解最近在由氰金属酸盐配位聚合物组成的异质结构薄膜中发现的增强磁性和光磁性的化学和结构特征。这些新特性是由两种固态相界面在纳米尺度上的相互作用产生的。所提出的系统来自普鲁士蓝类似物家族，已经观察到广泛的磁性现象，包括将磁性和光活性结合起来的能力。作为这些研究的一部分，该项目旨在改进和量化目前使用的基于溶液的薄膜沉积程序，并将光磁配位聚合物异质结构的概念扩展到多组分颗粒。非技术总结材料研究部（DMR）固态和材料化学（SSMC）项目支持的研究中开发的新的合成和制造方法将普遍适用于其他类别的配位聚合物纳米结构，并将用于从信息存储到光捕获的高科技应用。此外，固态合成、纳米级制造、磁学和光感应磁学相关的培训将为研究生和本科生研究人员提供在材料化学相关高科技行业中具有竞争力所需的技能和知识。拟议的项目还建立了学科之间以及美国和国际合作伙伴之间的合作。来自西弗吉尼亚州雅典市康科德大学物理科学系的学生和教师，非博士学位。授予EPSCoR机构，将进行与该项目相关的配位聚合物合成。研究任务涉及化学家和物理学家之间的合作项目，为学生提供了学习跨学科研究的重要性以及与不同领域的科学家交流所必需的工具的机会。

TECHNICAL SUMMARYIn this project supported by the Solid State and Materials Chemistry (SSMC) program in the Division of Materials Research (DMR), Professor Daniel Talham and coworkers at the University of Florida will explore new coordination polymer heterostructures in order to better understand the chemical and structural characteristics responsible for the enhanced magnetic and photomagnetic properties recently discovered in heterostructured thin films comprised of cyanometallate coordination polymers. The new properties result from interactions at nanometer length scales at the interface between the two solid-state phases. The proposed systems are from the family of Prussian blue analogs, for which a wide range of magnetic phenomena have been observed, including the ability to combine magnetism with photoactivity. As part of these studies, the project aims to improve and quantify the currently used solution- based thin film deposition procedures, and to extend the concept of photomagnetic coordination polymer heterostructures to multicomponent particles. NON-TECHNICAL SUMMARYNew synthesis and fabrication methodologies developed in the study supported by the Solid State and Materials Chemistry (SSMC) program in the Division of Materials Research (DMR) will be generally applicable to other classes of coordination polymer nanostructures and will be useful for high-technology applications ranging from information storage to light harvesting. In addition, training related to solid-state synthesis, nanoscale fabrication, magnetism, and light-induced magnetism will provide graduate and undergraduate student researchers with the skills and knowledge needed to be competitive in materials chemistry related high-technology professions. The proposed project also establishes cooperation between disciplines and among both US and international partners. Students and faculty from the Department of Physical Sciences at Concord University in Athens, West Virginia, a non-Ph.D. granting EPSCoR institution, will carry out coordination polymer synthesis associated with the project. Research tasks involve collaborative projects between chemists and physicists, providing an opportunity for students to learn the importance of interdisciplinary study and the tools necessary to communicate with scientists in different fields.