616 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Forschungszentrum JülichDE17 papers
- RWTH Aachen UniversityDE9 papers
- Jülich Aachen Research AllianceDE7 papers
- National Institute for Materials ScienceJP5 papers
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ3 papers
- Stadtwerke Jülich (Germany)DE3 papers
- University of Duisburg-EssenDE3 papers
- University of WürzburgDE3 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- Instituto de Física TeóricaES2 papers
- Nawi GrazAT2 papers
- Sorbonne UniversitéFR2 papers
20 papers
Gate-tunable Josephson diodes in magic-angle twisted bilayer graphene
A. Rothstein, R. J. Dolleman, L. Klebl +8
We report low-temperature measurements of two adjacent, gate-defined Josephson junctions (JJs) in magic-angle twisted bilayer graphene (MATBG) at a moiré filling factor near $ν= -2…
Multi-Orbital Charge Transfer into Nonplanar Cycloarenes Revealed with CO-Functionalized Tips
Anja Haags, Alexander Reichmann, Zilin Ruan +20
On-surface synthesis has allowed for the tuneable preparation of numerous molecular systems with variable properties. Recently, we demonstrated the highly selective synthesis of ke…
Controlling the magneto-transport properties of magnetic topological insulator thin films from Cr(BiSb)Te via molecular beam epitaxy
Jan Karthein, Jonas Buchhorn, Kaycee Underwood +5
In this work we present a systematic in-depth study of how we can alter the magneto-transport properties of magnetic topological insulator thin films by tuning the parameters of th…
Hydrogen toggling between Yoshimori spin spirals and elliptical Dzyaloshinskii-Moriya skyrmions in Fe on Ir(110)
Timo Knispel, Vasily Tseplyaev, Gustav Bihlmayer +3
Skyrmions are particle-like spin textures that arise from spin spiral states in the presence of an external magnetic field. These spirals can originate from either frustrated Heise…
Weak localization as probe of spin-orbit-induced spin-split bands in bilayer graphene proximity coupled to WSe
E. Icking, F. Wörtche, A. W. Cummings +6
Proximity coupling of bilayer graphene (BLG) to transition metal dichalcogenides (TMDs) offers a promising route to engineer gate-tunable spin-orbit coupling (SOC) while preserving…
Electric field tunable spin-orbit gap in a bilayer graphene/WSe quantum dot
Hubert Dulisch, David Emmerich, Eike Icking +7
We report on the investigation of proximity-induced spin-orbit coupling (SOC) in a heterostructure of bilayer graphene (BLG) and tungsten diselenide (WSe). A BLG quantum dot (Q…
Spin-orbital mixing in the topological ladder of the two-dimensional metal PtTe
M. Qahosh, M. Masilamani, H. Boban +9
We visualize the topological ladder and band inversions in PtTe using spin-polarized photoemission spectroscopy augmented by three-dimensional momentum imaging. This approach e…
Gate-defined single-electron transistors in twisted bilayer graphene
Alexander Rothstein, Ammon Fischer, Anthony Achtermann +12
Twisted bilayer graphene (tBLG) near the magic angle is a unique platform where the combination of topology and strong correlations gives rise to exotic electronic phases. These ph…
Interfaces of nodal-line semimetals: drum states, transport and refraction
Mattia Rudi, Alessandro De Martino, Kristof Moors +2
We study transport through interfaces in topological nodal-line semimetals, focusing on two geometries: a single interface between two large samples, one nodal-line semimetal and o…
Distance dependence of the energy transfer mechanism in WS-graphene heterostructures
David Tebbe, Marc Schütte, K. Watanabe +4
We report on the mechanism of energy transfer in van der Waals heterostructures of the two-dimensional semiconductor WS and graphene with varying interlayer distances, achieved…
Limitations of Caldeira-Leggett model for description of phase transitions in superconducting circuits
O. Kashuba, R. -P. Riwar
The inherent complexity of system-bath interactions often requires making critical approximations, which we here show to have a radical influence on the renormalization group flow…
Bisognano-Wichmann Hamiltonian for the entanglement spectroscopy of fractional quantum Hall states
A. Nardin, R. Lopes, M. Rizzi +2
We study the Bisognano-Wichmann Hamiltonian for fractional quantum Hall states defined on a sphere and explore its relationship with the entanglement Hamiltonian associated to the…
Reconstructing effective Hamiltonians from nonequilibrium (pre-)thermal steady states
Sourav Nandy, Markus Schmitt, Marin Bukov +1
Reconstructing Hamiltonians from local measurements is key to enabling reliable quantum simulation: both validating the implemented model, and identifying any left-over terms with…
Experimentally realized memristive memory augmented neural network
Ruibin Mao, Bo Wen, Yahui Zhao +8
Lifelong on-device learning is a key challenge for machine intelligence, and this requires learning from few, often single, samples. Memory augmented neural network has been propos…
Orbital contributions in the element-resolved valence electronic structure of Bi2Se3
Cheng-Tai Kuo, Shih-Chieh Lin, Jean-Pascal Rueff +9
In this work, we studied the bulk band structure of a topological insulator (TI) Bi2Se3 and determined the contributions of the Bi and Se orbital states to the valence bands using…
Complex magnetism of the two-dimensional antiferromagnetic Ge2F: from a Néel spin-texture to a potential antiferromagnetic skyrmion
Fatima Zahra Ramadan, Flaviano José dos Santos, Lalla Btissam Drissi +1
Based on density functional theory combined with low-energy models, we explore the magnetic properties of a hybrid atomic-thick two-dimensional (2D) material made of Germanene dope…
Fully in-situ InAs nanowire Josephson junctions by selective-area growth and shadow evaporation
Pujitha Perla, H. Aruni Fonseka, Patrick Zellekens +10
Josephson junctions based on InAs semiconducting nanowires and Nb superconducting electrodes are fabricated in-situ by a special shadow evaporation scheme for the superconductor el…
Molecular anchoring stabilizes low valence Ni(I)TPP on copper against thermally induced chemical changes
Henning Maximilian Sturmeit, Iulia Cojocariu, Matteo Jugovac +14
Many applications of molecular layers deposited on metal surfaces, ranging from single-atom catalysis to on-surface magnetochemistry and biosensing, rely on the use of thermal cycl…
Non-Poissonian Quantum Jumps of a Fluxonium Qubit due to Quasiparticle Excitations
Uri Vool, Ioan M. Pop, Katrina Sliwa +12
As the energy relaxation time of superconducting qubits steadily improves, non-equilibrium quasiparticle excitations above the superconducting gap emerge as an increasingly relevan…
Libxc: a library of exchange and correlation functionals for density functional theory
Miguel A. L. Marques, Micael J. T. Oliveira, Tobias Burnus
The central quantity of density functional theory is the so-called exchange-correlation functional. This quantity encompasses all non-trivial many-body effects of the ground-state…