Study of the Magnetic Structure of Free Clusters

先前的研究表明，2到10个原子团簇中， 500个原子的磁性可能比大块物质更强， 由于热效应而产生的全新磁现象 起伏，大的表面积与体积比和有限的尺寸 方面的影响. 该项目将扩展对钴的测量 和钆簇广泛的其他金属，合金和 金属化合物簇。 这些研究将作为以下职能进行： 温度，磁场，以及团簇的大小和组成。 的 最终目标是合成具有磁性的团簇， 将可用于诸如磁记录的应用中， 电子和光学。

Previous studies have shown that atomic clusters of between 2 and 500 atoms can be more magnetic than the bulk matter and exhibit entirely new magnetic phenomena as the result of thermal fluctuactions, a large surface-to-volume ratio and finite-size effects. This project will extend the measurements made on cobalt and gadolinium clusters to a broad range of other metal, alloy and metal compound clusters. The studies will be made as functions of temperature, magnetic field, and cluster size and composition. The ultimate goal is to synthesize clusters whose magnetic properties will be useful in applications such as magnetic recording, electronics and optics.