2.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- ETH ZurichCH630 papers
- Paul Scherrer InstituteCH136 papers
- École Polytechnique Fédérale de LausanneCH61 papers
- University of ZurichCH45 papers
- University of RegensburgDE44 papers
- Institute of PhysicsPL39 papers
- Centre National de la Recherche ScientifiqueFR37 papers
- Swiss Light Source37 papers
- Polish Academy of SciencesPL36 papers
- P.L. Kapitza Institute for Physical ProblemsRU26 papers
- National Institute for Materials ScienceJP25 papers
- University of GenevaCH23 papers
45 papers · 1 filter
From order to randomness: Onset and evolution of the random-singlet state in bond-disordered BaCu(SiGe)O spin-chain compounds
T. Shiroka, F. Eggenschwiler, H. -R. Ott +1
Heisenberg-type spin-chain materials have been extensively studied over the years, yet not much is known about their behavior in the presence of disorder. Starting from BaCuSi$…
Time-reversal symmetry breaking in Re-based superconductors
T. Shang, M. Smidman, S. K. Ghosh +15
To trace the origin of time-reversal symmetry breaking (TRSB) in Re-based superconductors, we performed comparative muon-spin rotation/relaxation (SR) studies of superconducting…
Optical detection of single electron transport dynamics
A. Kurzmann, P. Stegmann, J. Kerski +6
The unpredictability of a single quantum event lies at the very core of quantum mechanics. Physical information is therefore drawn from a statistical evaluation of many such proces…
Chiral Topological Semimetal with Multifold Band Crossings and Long Fermi arcs
Niels B. M. Schröter, Ding Pei, Maia G. Vergniory +14
Topological semimetals in crystals with a chiral structure (which possess a handedness due to a lack of mirror and inversion symmetries) are expected to display numerous exotic phy…
Nodeless superconductivity in the noncentrosymmetric MoRhN superconductor: a SR study
T. Shang, Wesen Wei, C. Baines +6
The noncentrosymmetric superconductor MoRhN, with K, adopts a -Mn-type structure (space group 432), similar to that of MoAlC. Its bulk superco…
Giant spontaneous Hall effect in a nonmagnetic Weyl-Kondo semimetal
Sami Dzsaber, Xinlin Yan, Mathieu Taupin +9
Nontrivial topology in condensed matter systems enriches quantum states of matter, to go beyond either the classification into metals and insulators in terms of conventional band t…
Direct observation of energy spectrum transition in narrow AlAs quantum wells
A. R. Khisameeva, A. V. Shchepetilnikov, V. M. Muravev +8
Spectra of magnetoplasma excitations have been investigated in a two-dimensional electron systems in AlAs quantum wells (QWs) of different widths. The magnetoplasma spectrum have b…
Spin gap in a quasi-1D S=1/2 antiferromagnet K2CuSO4Cl2
T. A. Soldatov, A. I. Smirnov, K. Yu. Povarov +3
Electron spin resonance experiments in the quasi-1D S=1/2 antiferromagnet KCuSOCl reveal opening of a gap in absence of magnetic ordering, as well as an anisotropic shi…
Spin waves near the edge of halogen substitution induced magnetic order in Ni(ClBr)4SC(NH)
A. Mannig, K. Yu. Povarov, J. Ollivier +1
We report an inelastic neutron scattering study of magnetic excitations in a quantum paramagnet driven into a magnetically ordered state by chemical substitution, namely Ni(Cl$_{1-…
Tunneling spectroscopy of graphene nanodevices coupled to large-gap superconductors
Joel I-Jan Wang, Landry Bretheau, Daniel Rodan-Legrain +4
We performed tunneling spectroscopy measurements of graphene coupled to niobium/niobium-nitride superconducting electrodes. Due to the proximity effect, the graphene density of sta…
Phase Slips and Parity Jumps in Quantum Oscillations of Inverted InAs/GaSb Quantum Wells
Matija Karalic, Christopher Mittag, Susanne Mueller +5
We present magnetotransport measurements of a strongly hybridized inverted InAs/GaSb double quantum well. We find that the spin-orbit interaction leads to an appreciable spin-split…
Edgeless and Purely Gate-Defined Nanostructures in InAs Quantum Wells
Christopher Mittag, Matija Karalic, Zijin Lei +4
Nanostructures in InAs quantum wells have so far remained outside of the scope of traditional microfabrication techniques based on etching. This is due to parasitic parallel conduc…
Topologically non-trivial valley states in bilayer graphene quantum point contacts
Hiske Overweg, Angelika Knothe, Thomas Fabian +11
We present measurements of quantized conductance in electrostatically induced quantum point contacts in bilayer graphene. The application of a perpendicular magnetic field leads to…
Evidence of Coulomb interaction induced Lifshitz transition and robust hybrid Weyl semimetal in Td MoTe2
N. Xu, Z. W. Wang, A. Magrez +13
Using soft x-ray angle-resolved photoemission spectroscopy we probed the bulk electronic structure of Td MoTe2. We found that on-site Coulomb interaction leads to a Lifshitz transi…
Universal nuclear focusing of confined electron spins
Sergej Markmann, Christian Reichl, Werner Wegscheider +1
For spin-based quantum computation in semiconductors, dephasing of electron spins by a fluctuating background of nuclear spins is a main obstacle. Here we show that this nuclear ba…
Microscopic effects of Dy-doping in the topological insulator Bi2Te3
L. B. Duffy, N. -J. Steinke, J. A. Krieger +13
Magnetic doping with transition metal ions is the most widely used approach to break timereversal symmetry in a topological insulator, a prerequisite for unlocking the TIs exotic p…
Nodeless superconductivity in the cage-type superconductor Sc5Ru6Sn18 with preserved time-reversal symmetry
D. Kumar, C. N. Kuo, F. Astuti +7
We report the single-crystal synthesis and detailed investigations of the cage-type superconductor Sc5Ru6Sn18, using powder x-ray diffraction (XRD), magnetization, specific-heat an…
Stable Branched Electron Flow
B A Braem, C Gold, S Hennel +6
The pattern of branched electron flow revealed by scanning gate microscopy shows the distribution of ballistic electron trajectories. The details of the pattern are determined by t…
Thermodynamics of a frustrated quantum magnet on a square lattice
K. Yu. Povarov, V. K. Bhartiya, Z. Yan +1
We report the magnetic and calorimetric measurements in single crystal samples of the square lattice quantum antiferromagnet BaCdVO(PO). An investigation of t…
Scanning Gate Microscopy in a Viscous Electron Fluid
Beat A Braem, Francesco M D Pellegrino, Alessandro Principi +10
We measure transport through a Ga[Al]As heterostructure at temperatures between 0.1 K and 30 K. Increasing the temperature enhances the electron-electron scattering rate and viscou…
On the coexistence of dipolar frustration and criticality in ferromagnets
Sergio A. Cannas, Alessandro Vindigni
In real magnets the tendency towards ferromagnetism, promoted by exchange coupling, is usually frustrated by dipolar interaction. As a result, the uniformly ordered phase is replac…
Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material NaIrO
G. Simutis, N. Barbero, K. Rolfs +10
The low-temperature magnetic properties of \tcr{polycrystalline} NaIrO, a candidate material for the realization of a quantum spin-liquid state, were investigated by means…
Quantum Critical Dynamics in a Spin Ladder
D. Blosser, V. K. Bhartiya, D. J. Voneshen +1
By means of inelastic neutron scattering we investigate finite temperature dynamics in the quantum spin ladder compound (CHN)CuBr (BPCB) near the magnetic field…
Interactions and magnetotransport through spin-valley coupled Landau levels in monolayer MoS
Riccardo Pisoni, Andor Kormányos, Matthew Brooks +12
The strong spin-orbit coupling and the broken inversion symmetry in monolayer transition metal dichalcogenides (TMDs) results in spin-valley coupled band structures. Such a band st…