Publications (23)
Direct assessment of the proton affinity of individual surface hydroxyls with non-contact atomic force microscopy
Margareta Wagner, Bernd Meyer, Martin Setvin +2
The state of protonation/deprotonation of surfaces has far-ranging implications in all areas of chemistry: from acid-base catalysis and the electro- and photocatalytic splittin…
Photoexcited Hole States at the SrTiO3(001) Surface Imaged with Noncontact AFM
Igor Sokolovic, Florian Ellinger, Aji Alexander +8
The behaviour of excess charges in ionic lattices, such as the formation of polarons and charge trapping at defect sites, influences the physical and chemical properties of materia…
Sexiphenyl on Cu(100): nc-AFM tip functionalization and identification
Margareta Wagner, Martin Setvin, Michael Schmid +1
The contrast obtained in scanning tunneling microscopy (STM) and atomic force microscopy (AFM) images is determined by the tip termination and symmetry. Functionalizing the tip wit…
Real-space investigation of polarons in hematite Fe2O3
Jesus Redondo, Michele Reticcioli, Vit Gabriel +17
In polarizable materials, electronic charge carriers interact with the surrounding ions, leading to quasiparticle behaviour. The resulting polarons play a central role in many mate…
Hematite in top and side view: resolving long-standing controversies about its surface structure
Jesús Redondo, Jan MichaliÄka, Giada Franceschi +13
Hematite is the most-investigated iron oxide model system in photo and electrocatalytic research. The rich chemistry of Fe and O allows for many bulk and sur…
Defect chemistry of Eu dopants in NaI scintillators studied by atomically resolved force microscopy
Manuel Ulreich, Lynn A. Boatner, Igor Sokolovic +6
Activator impurities and their distribution in the host lattice play a key role in scintillation phenomena. Here a combination of cross-sectional noncontact atomic force microscopy…