150 citations · 616 across the 14 of their papers we have counts for
14 papers
An Ultra-High Vacuum Scanning Tunneling Microscope with Pulse Tube and Joule-Thomson cooling operating at sub-pm z-noise
Marcus Eßer, Marco Pratzer, Marc Frömming +4
We describe a compact ultra-high vacuum (UHV) scanning tunneling microscope (STM) system that does not need any external supply of cooling liquids. It achieves temperatures down to…
Mechanisms of skyrmion collapse revealed by sub-nm maps of the transition rate
Florian Muckel, Stephan von Malottki, Christian Holl +5
Magnetic skyrmions are key candidates for novel memory, logic, and neuromorphic computing. An essential property is their topological protection caused by the whirling spin texture…
Strong and Weak Three-Dimensional Topological Insulators Probed by Surface Science Methods
Markus Morgenstern, Christian Pauly, Jens Kellner +12
We review the contributions of surface science methods to discover and improve 3D topological insulator materials, while illustrating with examples from our own work. In particular…
Probing the Pinning Strength of Magnetic Vortex Cores with sub-nm Resolution
Christian Holl, Marvin Knol, Marco Pratzer +4
Topological magnetic textures such as vortex cores or skyrmions are key candidates for non-volatile information processing. This exploits the texture movement by current pulses tha…
One-dimensional Si chains embedded in Pt(111)and protected by a hexagonal boron-nitride monolayer
Silke Rose, Peter Nemes-Incze, Marco Pratzer +3
Using scanning tunneling microscopy, we show that Si deposition on Pt(111) at 300K leads to a network of one-dimensional Si chains. On the bare Pt(111) surface, the chains, embedde…
Mask aligner for ultrahigh vacuum with capacitive distance control
Priyamvada Bhaskar, Simon Mathioudakis, Tim Olschewski +5
We present a mask aligner driven by three piezo motors which guides and aligns a SiN shadow mask under capacitive control towards a sample surface. The three capacitors for read ou…