Application of spin-sensitive electron spectroscopies to investigations of electronic and magnetic properties of solid surfaces and epitaxial systems

摘要

The principal objectives of the research have been improved understanding and characterization of electronic and magnetic properties of surfaces, adsorbates and epitaxially-grown systems. Toward this end, substantial effort has also been directed toward better elucidation of the dynamical processes involved in electron-surface and atom-surface interactions, since these provide the bases for electron spectroscopies commonly used for probing surface properties. To accomplish these objectives, three novel spin-sensitive electron spectroscopies have been developed in this laboratory, and these have been exploited to provide new information not accessible using the corresponding conventional (non-spin-sensitive) spectroscopies. These spectroscopies and the new knowledge that has resulted from their application are discussed briefly in the following three sections of the report: spin polarized low energy electron diffraction (SPLEED); spin polarized electron energy loss spectroscopy (SPEELS); and spin polarized (metastable atom) deexcitation spectroscopy (SPMDS).