Unoccupied electronic states of Au(113): Theory and experiment - art. no. 235412

We present results from inverse photoemission spectroscopy in the isochroma t mode, with angular resolution, from a clean Au(113) surface. To identify the origin of the different resonances, we have performed a first-principle s calculation of the bulk band structure in the linear-muffin-tin-orbital f ormalism. We predict the dispersion of the bulk features, as a function of parallel momentum, considering energy and momentum conservation. We have be en able to identify unambiguously two surface resonances and a surface stat e in the [(1) over bar 10] and [33 (2) over bar] directions, respectively, as well as various bulk-derived features.