HIGH-RESOLUTION PHOTOEMISSION COMBINED WITH LOW-TEMPERATURE STM

A novel low-temperature (LT) surface-science facility based on a two-c hamber UHV system has been developed for combined investigations of th e electronic and geometric structure of surfaces, employing scanning t unneling microscopy at T less than or equal to 5 K and high-resolution (Delta E congruent to 10 meV) photoemission at T less than or equal t o 50 K. A LHe-cooled sample manipulator enables cold transfer of sampl es (and tips) between the two chambers. Here we present the LT-UHV fac ility together with first measurements on silver surfaces and silver c lusters prepared in nanopits of a graphite surface. (C) 1998 Elsevier Science B.V.