Surface science at the PEARL beamline of the Swiss Light Source

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift


The Photo-Emission and Atomic Resolution Laboratory (PEARL) is a new soft X-ray beamline and surface science laboratory at the Swiss Light Source. PEARL is dedicated to the structural characterization of local bonding geometry at surfaces and interfaces of novel materials, in particular of molecular adsorbates, nanostructured surfaces, and surfaces of complex materials. The main experimental techniques are soft X-ray photoelectron spectroscopy, photoelectron diffraction, and scanning tunneling microscopy (STM). Photoelectron diffraction in angle-scanned mode measures bonding angles of atoms near the emitter atom, and thus allows the orientation of small molecules on a substrate to be determined. In energy scanned mode it measures the distance between the emitter and neighboring atoms; for example, between adsorbate and substrate. STM provides complementary, real-space information, and is particularly useful for comparing the sample quality with reference measurements. In this article, the key features and measured performance data of the beamline and the experimental station are presented. As scientific examples, the adsorbate-substrate distance in hexagonal boron nitride on Ni(111), surface quantum well states in a metal-organic network of dicyano-anthracene on Cu(111), and circular dichroism in the photoelectron diffraction of Cu(111) are discussed.


  • Matthias Muntwiler
  • Jun Zhang
  • Roland Stania
  • Fumihiko Matsui
  • Peter Oberta
  • Uwe Flechsig
  • Luc Patthey
  • Christoph Quitmann
  • Thilo Glatzel
  • Roland Widmer
  • Ernst Meyer
  • Thomas A. Jung
  • Philipp Aebi
  • Roman Fasel
  • Thomas Greber
Enheter & grupper
Externa organisationer
  • Paul Scherrer Institute
  • University of Zurich
  • Nara Institute of Science and Technology
  • Swiss Federal Laboratories for Materials Science and Technology
  • University of Fribourg
  • Academy of Sciences of the Czech Republic
  • University of Basel

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Acceleratorfysik och instrumentering


Sidor (från-till)354-366
Antal sidor13
TidskriftJournal of Synchrotron Radiation
Utgåva nummer1
StatusPublished - 2017 jan 1
Peer review utfördJa