New capabilities on their way

New capabilities on their way

Claudia Struzzi and Nikolay Vinogradov working in the scanning tunneling microscopy laboratory at MAX IV


Two projects have received funding from the Carl Tryggers Stiftelse för Vetenskaplig Forskning

 Atomic force microscopy at MAX IV for studies of novel carbon nanostructures and modern catalysts

Alexei Preobrajenski, Jan Knudsen, Nikolay Vinogradov

Scanning probe techniques such as scanning tunneling microscopy (STM) and atomic force microscopy (AFM) have revolutionized both fundamental and applied studies of solid surfaces in the last few decades by providing atomic scale characterization of the structure and electronic properties of materials. They are particularly informative in combination with a variety of spectroscopic techniques available at modern synchrotron radiation sources.

The main objective of this project is to equip the STM laboratory at MAX IV with AFM capabilities, thereby strengthening the user community and collaborations between different beamlines and research groups, and opening new possibilities in atomic scale characterization of non-conducting materials relevant for electronics, heterogeneous catalysis and nano-fabrication.

The funding provided by the Carl Tryggers Stiftelse för Vetenskaplig Forskning  will make the suggested upgrade to happen, thus enabling both in-house researchers and external user groups to complement their spectroscopic studies of complex insulating materials (catalysts, ceramics, high-k dielectrics and ferroelectrics, environmental and biological samples) with the morphological characterisation of the sample surfaces with AFM.


Development of a Molecular Jet source – en route to tackling science’s Grand Challenges

Noelle Walsh, Conny Såthe, Antti Kivimäki, Rainer Pärna, Maxim Tchaplyguine, Gunnar Öhrwall

Investigating the interaction of light with molecules and the determination of their properties and dynamics is not only essential to the understanding of a myriad of important processes that occur in nature but, it is also important for industrial and technological advancement.

The Low Density Matter (LDM) relevant beamlines at the MAX IV Laboratory will facilitate research projects that focus on a variety of photochemical reaction studies. A high performance molecular jet source is essential to the collection of high quality experimental data – in particular – the collection of high quality electron/ion multi-coincidence data with excellent momentum resolution.

The funding granted by the Carl Tryggers Stiftelse för Vetenskaplig Forskning enables us, at the LDM relevant beamlines to collaborate in the development of a new, highly-flexible, state-of-the-art, supersonic molecular jet source that will be available to the users of all LDM relevant beamlines. This sample delivery system will contribute to research at MAX IV for many years to come.


Both projects are funded by Carl Tryggers Stiftelse för Vetenskaplig Forskning (The Carl Trygger Foundation for Scientific Research) with approximately €50 000 each. These new capabilities will be available to all users but probably mostly used by those at the soft X-ray beamlines i.e. FLEXPES, MAXPEEM, Species, Hippie, FinEstBeAMS, Bloch and Veritas.