Exchange Coupling and Phase Transitions in Novel Transition-Metal Chain Compounds

新型过渡金属链化合物中的交换耦合和相变

• 批准号: 9111408
• 负责人: Joseph Templeton
• 金额: $ 29.4万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-15 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9111408&HistoricalAwards=false
• 关键词: Exchange; Coupling; Phase; Transitions; Novel

This renewal award is supported jointly by the Solid State Chemistry Program in the Division of Materials Research and the Inorganic, Bioinorganic and Organometallic Chemistry Program in the Division of Chemistry. This magnetochemistry research program is devoted to the investigation of the chemical and structural features which determine the nature of cooperativity in low dimensional compounds, especially systems that have unusual structures or exhibit phase transitions. The importance of low-dimensional systems has been demonstrated by the recent discovery of high-temperature superconductors, which are thought to be propagated through low-dimensional networks. New one-dimensional magnetic compounds, mainly bridged Cu(II) compounds, will be synthesized and characterized, both structurally and magnetically. Observed magnetic properties will be correlated with ab initio calculated values. %%% Low-dimensional systems may have other important properties and may find uses in switches, actuators, sensors, display devices and in logic circuits. A better understanding of the fundamental properties of low-dimensional systems will permit the design of substances with prescribed properties.

此更新奖项由Solid State 材料研究部化学专业 无机，生物无机和有机化学课程 化学部。这种磁性化学研究 该计划致力于研究化学物质， 决定协同性本质的结构特征 在低维化合物中，特别是具有 不寻常的结构或表现出相变。 的 低维系统的重要性已经被证明， 最近发现的高温超导体， 被认为是通过低维网络传播的。 新型一维磁性化合物，主要是桥联Cu（II） 化合物，将被合成和表征， 结构和磁性。观察到的磁性 将与从头计算值相关。 %%% 低维系统可能具有其他重要性质， 可用于开关、致动器、传感器、显示装置 在逻辑电路中。更好地理解 低维系统的基本性质将允许 具有规定性质的物质的设计。