150 citations · 616 across the 14 of their papers we have counts for
11 papers · 1 filter
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…
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…
Tuning the pseudospin polarization of graphene by a pseudo-magnetic field
Alexander Georgi, Peter Nemes-Incze, Ramon Carrillo-Bastos +16
One of the intriguing characteristics of honeycomb lattices is the appearance of a pseudo-magnetic field as a result of mechanical deformation. In the case of graphene, the Landau…
Sub-nm wide electron channels protected by topology
Christian Pauly, Bertold Rasche, Klaus Koepernik +11
Helical locking of spin and momentum and prohibited backscattering are the key properties of topologically protected states. They are expected to enable novel types of information…
Preferential antiferromagnetic coupling of vacancies in graphene on SiO_2: Electron spin resonance and scanning tunneling spectroscopy
S. Just, S. Zimmermann, V. Kataev +3
Monolayer graphene grown by chemical vapor deposition and transferred to SiO_2 is used to introduce vacancies by Ar^+ ion bombardment at a kinetic energy of 50 eV. The density of d…
Versatile scanning tunneling microscopy with 120ps time resolution
Christian Saunus, Jan Raphael Bindel, Marco Pratzer +1
We describe a fully ultra-high vacuum compatible scanning tunneling microscope (STM) optimized for radio-frequency signals. It includes in-situ exchangeable tips adapted to high fr…
Probing electron-electron interaction in quantum Hall systems with scanning tunneling spectroscopy
S. Becker, C. Karrasch, T. Mashoff +4
Using low-temperature scanning tunneling spectroscopy applied to the Cs-induced two-dimensional electron system (2DES) on p-type InSb(110), we probe electron-electron interaction e…
Gundlach oscillations and Coulomb blockade of Co nano-islands on MgO/Mo(100) investigated by scanning tunneling spectroscopy at 300 K
C. Pauly, M. Grob, M. Pezzotta +2
Ultrathin MgO films on Mo(100) with a thickness up to 12 ML are studied by scanning tunneling microscopy and spectroscopy at room temperature. The spatial variation of the work fun…
Scanning tunneling spectroscopy of a dilute two-dimensional electron system exhibiting Rashba spin splitting
S. Becker, M. Liebmann, T. Mashoff +2
Using scanning tunneling spectroscopy (STS) at 5 K in B-fields up to 7 T, we investigate the local density of states of a two-dimensional electron system (2DES) created by Cs adsor…
Bistability and oscillatory motion of natural nano-membranes appearing within monolayer graphene on silicon dioxide
T. Mashoff, M. Pratzer, V. Geringer +4
The recently found material graphene is a truly two-dimensional crystal and exhibits, in addition, an extreme mechanical strength. This in combination with the high electron mobili…