Synthesis, Characterization, and Physical Properties of Metal Chalcogenides

金属硫属化物的合成、表征和物理性质

• 批准号: 9709351
• 负责人: James Ibers
• 金额: $ 42.9万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2002-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9709351&HistoricalAwards=false
• 关键词: Synthesis; Characterization; Physical; Properties; Metal

9709351 Ibers This project aims at the synthesis, characterization, and study of physical properties of solid-state metal chalcogenides, which are a class of materials that contain sulfur, selenium or tellurium. Among areas to be investigated are (a) ternary and quaternary chalcogenides of the Group IV metals; (b) quaternary rare-earth chalcogenides; (c) structural distortions exhibited by these materials, and the corresponding band-structure calculations; (d) chalcogenides of rhenium. Characterization of the new materials will include structure determinations by single- crystal X-ray methods and the measurement of transport properties, especially electrical conductivity and magnetic susceptibility. %%% Since it is felt that the chalcogenides may provide a rich source of novel materials, it is important to expand the synthesis of these compounds as a possible source of technologically relevant new materials with predictable chemistry, structure and property/structure relationships. The ultimate goal is to provide through the integration of research and education students as future scientists and engineers able to provide novel classes of solid-state materials that exhibit semiconductor, insulator, or magnetic properties. ***

9709351本项目旨在合成、表征和研究固态金属硫化物的物理性质，这是一类含有硫、硒或碲的材料。要研究的领域包括：(A)第四类金属的三元和四元硫化物；(B)四元稀土硫化物；(C)这些材料表现出的结构扭曲，以及相应的能带结构计算；(D)Re的硫化物。对新材料的表征将包括用单晶X射线方法确定结构和测量传输性质，特别是电导率和磁化率。%由于人们认为硫族化合物可以提供丰富的新材料来源，因此重要的是扩大这些化合物的合成，作为具有可预测的化学、结构和性能/结构关系的技术相关新材料的可能来源。最终目标是通过研究和教育的整合，使学生成为未来的科学家和工程师，能够提供具有半导体、绝缘体或磁性的新型固态材料。***