Synchrotron-Radiation and Free-Electron Laser-Surface and Interface Spectroscopy and Spectromicroscopy
Experimental breakthroughs are having a big impact on surface and interface science. We review two series of results: first, photoemission experiments performed with high (0.1 micron) lateral resolution on the scanning instrument MAXIMUM at Wisconsin. These experiments revealed, in particular, core-level shifts from place to place on cleaved semiconductor surfaces, raising serious questions about a whole class of interface formation experiments. The second series of results applied for the first time a free-electron laser (the world's brightest Vanderbilt University infrared facility) to surface and interface physics. Using the FELIPE (FEL Internal PhotoEmission) technique, we measured heterojunction band discontinuities with a few meV accuracy.
Margaritondo, g, ecole polytech fed lausanne,inst phys appl,ch-1015 lausanne,switzerland.
ISI Document Delivery No.: NR692
Record created on 2006-10-03, modified on 2016-08-08