254 citations · 1.5k across the 30 of their papers we have counts for
30 papers
Facet-selective ballistic supercurrent in a weak topological insulator
Prasanna Rout, Ankit Khola, Lalit Pandey +9
Topological superconductivity is widely pursued by inducing superconducting correlations in topologically protected boundary states. In two dimensions, this strategy has been reali…
Yu-Shiba-Rusinov tips: imaging spins at the atomic scale with full magnetic sensitivity
Felix Küster, Souvik Das, Stuart S. P. Parkin +1
Measurements of magnetic properties at the atomic scale require probes capable of combining high spatial resolution with spin sensitivity. Spin-polarized scanning tunneling microsc…
Two-dimensional Shiba lattices as possible platform for crystalline topological superconductivity
Martina O. Soldini, Felix Küster, Glenn Wagner +7
Localized or propagating Majorana boundary modes are the key feature of topological superconductors. They are rare in naturally-occurring compounds, but the tailored manipulation o…
Interaction effects in a 1D flat band at a topological crystalline step edge
Glenn Wagner, Souvik Das, Johannes Jung +11
Step edges of topological crystalline insulators can be viewed as predecessors of higher-order topology, as they embody one-dimensional edge channels embedded in an effective three…
Non-Majorana modes in diluted spin chains proximitized to a superconductor
Felix Küster, Sascha Brinker, Richard Hess +5
Spin chains proximitized with superconducting condensates have emerged as one of the most promising platforms for the realization of Majorana modes. Here, we craft diluted spin cha…
Obstructed surface states as the origin of catalytic activity in inorganic heterogeneous catalysts
Guowei Li, Yuanfeng Xu, Zhida Song +8
The discovery of new catalysts that are efficient, sustainable, and low-cost is a major research endeavor for many industrial chemical processes. This requires an understanding and…
Anomalous excitations of atomically crafted quantum magnets
Sascha Brinker, Felix Küster, Stuart S. P. Parkin +2
High energy resolution spectroscopic studies of quantum magnets have proven to be extremely valuable in directly accessing magnetodynamics quantities, such as energy barriers, magn…
Long range and highly tunable interaction between local spins coupled to a superconducting condensate
Felix Küster, Sascha Brinker, Samir Lounis +2
Interfacing magnetism with superconducting condensates is rapidly emerging as a viable route for the development of innovative quantum technologies. In this context, the developmen…
Correlating Josephson supercurrents and Shiba states in quantum spins unconventionally coupled to superconductors
Felix Küster, Ana M. Montero, Filipe S. M. Guimarares +4
Local spins coupled to superconductors give rise to several emerging phenomena directly linked to the competition between Cooper pair formation and magnetic exchange. These effects…
Competing energy scales in topological superconducting heterostructures
Yunyi Zang, Felix Küster, Jibo Zhang +6
Artificially engineered topological superconductivity has emerged as a viable route to create Majorana modes, exotic quasiparticles which have raised great expectations for storing…
Intrinsic 2D-XY ferromagnetism in a van der Waals monolayer
Amilcar Bedoya-Pinto, Jing-Rong Ji, Avanindra Pandeya +6
Long before the recent fascination with two-dimensional materials, the critical behaviour and universality scaling of phase transitions in low-dimensional systems has been a topic…
Direct observation of handedness-dependent quasiparticle interference in the two enantiomers of topological chiral semimetal PdGa
Paolo Sessi, Feng-Ren Fan, Felix Küster +16
It has recently been proposed that combining chirality with topological band theory may result in a totally new class of fermions. These particles have distinct properties: they ap…
Origin of the quasi-quantized Hall effect in ZrTe5
Stanislaw Galeski, Toni Ehmcke, Rafal Wawrzynczak +24
The quantum Hall effect (QHE) is traditionally considered a purely two-dimensional (2D) phenomenon. Recently, a three-dimensional (3D) version of the QHE has been reported in the D…
Microscopic manipulation of ferroelectric domains in SnSe monolayers at room temperature
Kai Chang, Felix Küster, Brandon J. Miller +5
Two-dimensional (2D) van der Waals ferroelectrics provide an unprecedented architectural freedom for the creation of artificial multiferroics and non-volatile electronic devices ba…
On the preparation and electronic properties of clean superconducting Nb(110) surfaces
Artem B. Odobesko, Soumyajyoti Haldar, Stefan Wilfert +7
We have studied cleaning procedures of Nb(110) by verifying the surface quality with low-energy electron diffraction, Auger electron spectroscopy, and scanning tunneling microscopy…
Breaking crystalline symmetry of epitaxial SnTe films by strain
Steffen Schreyeck, Karl Brunner, Laurens W. Molenkamp +7
SnTe belongs to the recently discovered class of topological crystalline insulators. Here we study the formation of line defects which break crystalline symmetry by strain in thin…
Scanning tunneling spectroscopy investigations of superconducting-doped topological insulators: Experimental pitfalls and results
Stefan Wilfert, Paolo Sessi, Zhiwei Wang +8
Recently the doping of topological insulators has attracted significant interest as a potential route towards topological superconductivity. Because many experimental techniques la…
Systematics of electronic and magnetic properties in the transition metal doped SbTe quantum anomalous Hall platform
M F. Islam, C. M. Canali, A. Pertsova +19
The quantum anomalous Hall effect (QAHE) has recently been reported to emerge in magnetically-doped topological insulators. Although its general phenomenology is well established,…
Universal response of the type-II Weyl semimetals phase diagram
P. Rüßmann, A. P. Weber, F. Glott +11
The discovery of Weyl semimetals represents a significant advance in topological band theory. They paradigmatically enlarged the classification of topological materials to gapless…
Robust spin-polarized midgap states at step edges of topological crystalline insulators
Paolo Sessi, Domenico Di Sante, Andrzej Szczerbakow +11
Topological crystalline insulators are materials in which the crystalline symmetry leads to topologically protected surface states with a chiral spin texture, rendering them potent…
Single electron gating of topological insulators
Paolo Sessi, Thomas Bathon, Konstantin A. Kokh +2
Introducing, observing, and manipulating individual impurities coupled to a host material offers the opportunity to create new device concepts based on single spin and charge state…
Mapping the effect of defect-induced strain disorder on the Dirac states of topological insulators
Oliver Storz, Alberto Cortijo, Stefan Wilfert +6
We provide a detailed microscopic characterization of the influence of defects-induced disorder onto the Dirac spectrum of three dimensional topological insulators. By spatially re…
Impurity screening and stability of Fermi arcs against Coulomband magnetic scattering in a Weyl monopnictide
Paolo Sessi, Yan Sun, Thomas Bathon +9
We present a quasiparticle interference study of clean and Mn surface-doped TaAs, a prototypical Weyl semimetal, to test the screening properties as well as the stability of Fermi…
Dual nature of magnetic dopants and competing trends in topological insulators
Paolo Sessi, Rudro Biswas, Thomas Bathon +8
Topological insulators interacting with magnetic impurities have been reported to host several unconventional effects. These phenomena are described within the framework of gapping…