Photoemission and Atomic Resolution Laboratory
PEARL is dedicated to the characterisation of local atomic and electronic structure at the surface of a variety of systems such as molecular networks, organic and inorganic semiconductors, nanostructures, thin films, and complex materials. Soft x-ray photoelectron spectroscopy (XPS, ARPES) and diffraction (XPD/PhD) as well as scanning tunnelling microscopy (STM) and spectroscopy (STS) give insight into fundamental phenomena in condensed matter physics that are intimately tied to atomic arrangement or structural transitions.
The laboratory integrates a soft x-ray beamline with an angle-resolved photoelectron spectrometer and a low-temperature scanning tunnelling microscope (STM) in the same ultra-high vacuum system. On-site surface preparation facilities include ion sputtering, high-temperature annealing and physical vapour deposition. A fast-entry load lock and ports for user-supplied equipment are also available.
Ultrahigh-vacuum chamber with standard surface preparation facilities (ion sputtering, annealing), built-in evaporator for organic materials (up to 700 K), and ports for user-supplied evaporators.