Presidential Young Investigator Award

本研究将尝试合成以碳、氮或硼原子为间隙的早期过渡金属的硫族化合物簇或缩合簇化合物。具有丰富扩展固体化合物的金属-金属键簇的性质和化学性质将会相关。团簇大小和电子数会发生变化，团簇凝聚形成延伸的金属-金属键网络。由于它们的离散性，PI应该能够以一种基本的方式探测晶体结构、电子结构和磁性之间的关系。这一经验应在稀土金属间化合物的磁相互作用研究中得到更广泛的应用。鉴于这种材料在永磁体中的重要性，这一点具有特别的意义。

This research will attempt to synthesize chalcogenide cluster or condensed cluster compounds of early transition metals in which carbon, nitrogen or boron atoms act as interstitials. The properties and chemistry of metal-metal bonded clusters with rich extended solid state compounds will be related. The cluster size and electron count will be varied and the clusters condensed to form extended metal-metal bonded networks. Because of their discrete nature the PI should be able to probe in a fundamental way the relationships between crystal structure, electronic structure and magnetic properties. This experience should find wider application in the study of magnetic interactions occurring in rare-earth intermetallics. This is of particular significance in view of the importance of such materials in permanent magnets.