Studies of Nanometer-Scale Magnetism in Clusters and Adatoms Using Spin-Polarized Scanning Tunneling Microscopy

[223684]首先，这个项目的目标是了解磁性的演变，从附着原子到团簇再到薄膜。重点放在团簇和附原子上。我们感兴趣的是协同磁性能所需的最小尺寸。同样令人感兴趣的是粒子间的磁相互作用。研究结果对磁团簇介质、磁薄膜技术和低维磁学理论的发展具有重要意义。扫描隧道显微镜和自旋极化扫描隧道显微镜将用于研究。这个项目将研究表面上磁性原子之间的磁相互作用。原子群将被构建成团簇，团簇的磁性随大小的变化将用原子敏感的显微镜来研究。研究结果将对开发用于薄膜记录和一般信息技术的新型磁性介质具有重要意义。＊＊＊

9223684 First The objective of this project is to understand the evolution of magnetism, from adatoms to clusters to thin films. Emphasis is placed on clusters and adatoms. Of interest is the minimum size required for cooperative magnetic properties. Also of interst are interparticle magnetic interactions. The result will be relevant to development of magnetic cluster media, magnetic thin-film technology, and theories of low-dimensional magnetism. Scanning tunneling microscopy and spin-polarized scanning tunneling microscopy will be used in the investigations. %%% This project will study magnetic interactions between magnetic atoms on surfaces. Groups of atoms will be built up to form clusters, and the variation of the magnetic properties of the cluster with size will be studied with atomically sensitive microscopies. The results will be relevant to the development of new magnetic media for thin film recording and general information technology. ***