In a detailed work published recently in Phys. Rev. B 113, 195426 (2026) our group resolved the atomic structure of epitaxial single-layer and multilayer TiTe2 films on Au(111), which surprisingly evolve from isolated TiTe2 units with Ti atoms embedded in the topmost gold layer. By Scanning...
At this years Long Night of the Sciences (Lange Nacht der Wissenschaften) we presented our work to the general public. Hannah, Isabella, Alexander, and Eric showed and explained not only how LEED and STM produce scientific data but also presented real instruments. Video animations, 3D models and pos...
The so-called 'Perovskite solar cells' have achieved remarkable efficiency improvements over the past twenty years, reaching up to 25%. This progress is largely attributed to the discovery and optimization of functional layers that interface the perovskite light absorber with the external environmen...
In a collaborative effort with the group of Prof. F. Reinert and Dr. H. Bentmann at University Würzburg the electronic structure of a tellurium (Te) adsorbate structure was investigated by angle resolved photoemission (ARPES, U Würzburg) and structure determination (U Erlangen). It turned out, that ...
When molecules adsorb on surfaces many interesting phenomena arise. One is the occurrence of chirality (handedness) from molecules that a achiral in the gas phase. These so called "prochiral" molecule can adsorb in two mirror symmetric ways on a surface and become chiral, since the two configuration...
The German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) has awarded funding to the group for the investigation of the growth and structure of ultra-thin transition metal telluride films. Such films find applications as thermoelectrics, sensors, phase-change materials, etc. But more int...
Materials that appear in different structural phases are of great interest since they test our fundamental understanding of the properties of a substance. The wurtzite phase of cobalt(II) oxide is a rather elusive polymorph of CoO that normally has the simple rocksalt crystal structure. Up to now it...
Combining the expertise of all groups at the chair of solid state physics we unraveled the structural and electronic properties of CuTe chains grown on Cu(111).
These chains form after the deposition of one-third of a monolayer of Te and a subsequent annealing step. They are extremely well ordere...
By employing Scanning Tunneling Microscopy (STM) and Density Functional Theory (DFT) we investigated the behaviour of two different porphyrins on ultra thin cobalt oxide films grown on an iridium single crystal.
The two molecules depciced on the image differ in terms of their anchoring points to ...
Next week is the big week for Feifei and Sebastian. Both are going to defend their theses.
Sebastian Otto will take the lead on Thursday. He will defend his thesis about "Two-photon photoelectron spectroscopy on topological insulators" on Thursday 14:00, lecture hall F. The public ta...
