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
31 papers · 1 filter
Collective electronic excitation in a trapped ensemble of photogenerated dipolar excitons and free holes revealed by inelastic light scattering
Sebastian Dietl, Sheng Wang, Dieter Schuh +5
Photogenerated excitonic ensembles confined in coupled GaAs quantum wells are probed by a complementary approach of emission spectroscopy and resonant inelastic light scattering. L…
Combined atomic force microscopy and photoluminescence imaging to select single InAs/GaAs quantum dots for quantum photonic devices
Luca Sapienza, Jin Liu, Jin Dong Song +4
We report on a combined photoluminescence imaging and atomic force microscopy study of single, isolated self-assembled InAs quantum dots (density <0.01 um^(-2) capped by a 95 nm Ga…
Oscillating magnetoresistance in graphene p-n junctions at intermediate magnetic fields
Hiske Overweg, Hannah Eggimann, Ming-Hao Liu +10
We report on the observation of magnetoresistance oscillations in graphene p-n junctions. The oscillations have been observed for six samples, consisting of single-layer and bilaye…
Anisotropy and suppression of spin--orbit interaction in a GaAs double quantum dot
Andrea Hofmann, Ville F. Maisi, Tobias Krähenmann +4
The spin-flip tunneling rates are measured in GaAs-based double quantum dots by time-resolved charge detection. Such processes occur in the Pauli spin blockade regime with two elec…
Overflow of a dipolar exciton trap at high magnetic fields
S. Dietl, K. Kowalik-Seidl, D. Schuh +3
We study laterally trapped dipolar exciton ensembles in coupled GaAs quantum wells at high magnetic fields in the Faraday configuration. In photoluminescence experiments, we identi…
Distribution of current fluctuations in a bistable conductor
S. Singh, J. T. Peltonen, I. M. Khaymovich +3
We measure the full distribution of current fluctuations in a single-electron transistor with a controllable bistability. The conductance switches randomly between two levels due t…
Experimental Signatures of the Inverted Phase in InAs/GaSb Coupled Quantum Wells
Matija Karalic, Susanne Mueller, Christopher Mittag +8
Transport measurements are performed on InAs/GaSb double quantum wells at zero and finite magnetic fields applied parallel and perpendicular to the quantum wells. We investigate a…
Nanosecond-timescale spin transfer using individual electrons in a quadruple-quantum-dot device
T. A. Baart, N. Jovanovic, C. Reichl +2
The ability to coherently transport electron-spin states between different sites of gate-defined semiconductor quantum dots is an essential ingredient for a quantum-dot-based quant…
Competing effects of Mn and Y doping on the low-energy excitations and phase diagram of LaYFeMnAsOF iron-based superconductors
M. Moroni, S. Sanna, G. Lamura +8
Muon Spin Rotation (SR) and F Nuclear Magnetic Resonance (NMR) measurements were performed to investigate the effect of Mn for Fe substitutions in LaYFe$_{1…
Dichotomy between Attractive and Repulsive Tomonaga-Luttinger Liquids in Spin Ladders
M. Jeong, D. Schmidiger, H. Mayaffre +8
We present two methods to determine whether the interactions in a Tomonaga-Luttinger liquid (TLL) state of a spin- Heisenberg antiferromagnetic ladder are attractive or repuls…
Disentangling nonradiative recombination processes in Ge micro-crystals on Si substrates
F. Pezzoli, A. Giorgioni, K. Gallacher +9
We address nonradiative recombination pathways by leveraging surface passivation and dislocation management in micron-scale arrays of Ge crystals grown on deeply patterned Si subst…
Coherent spin-exchange via a quantum mediator
T. A. Baart, T. Fujita, C. Reichl +2
Coherent interactions at a distance provide a powerful tool for quantum simulation and computation. The most common approach to realize an effective long-distance coupling 'on-chip…
High pressure magnetic state of MnP probed by means of muon-spin rotation
R. Khasanov, A. Amato, P. Bonfà +5
We report a detailed SR study of the pressure evolution of the magnetic order in the manganese based pnictide MnP, which has been recently found to undergo a superconducting tra…
Computer-automated tuning of semiconductor double quantum dots into the single-electron regime
T. A. Baart, P. T. Eendebak, C. Reichl +2
We report the computer-automated tuning of gate-defined semiconductor double quantum dots in GaAs heterostructures. We benchmark the algorithm by creating three double quantum dots…
Magnetic ordering in the ultra-pure site-diluted spin chain materials SrCuNiO
G. Simutis, M. Thede, R. Saint-Martin +8
Muon spin rotation technique is used to study magnetic ordering in ultra-pure samples of SrCuNiO, an archetypical antiferromagnetic Heisenberg chain system…
Investigating Energy Scales of Fractional Quantum Hall States using Scanning Gate Microscopy
Beat A. Braem, Tobias Krähenmann, Szymon Hennel +4
We use the voltage biased tip of a scanning force microscope at a temperature of 35\,mK to locally induce the fractional quantum Hall state of in a split-gate defined const…
Momentum-Resolved Electronic Structure of the High- Superconductor Parent Compound BaBiO
N. C. Plumb, D. J. Gawryluk, Y. Wang +12
We investigate the band structure of BaBiO, an insulating parent compound of doped high- superconductors, using \emph{in situ} angle-resolved photoemission spectroscop…
Classical origin of conductance oscillations in an integrable cavity
Christina Pöltl, Aleksey Kozikov, Klaus Ensslin +5
Scanning gate microscopy measurements in a circular ballistic cavity with a tip placed near its center yield a non-monotonic dependence of the conductance on the tip voltage. Detai…
Andreev spectroscopy of iron-based superconductors: temperature dependence of the order parameters and scaling of the with
T. E. Kuzmicheva, S. A. Kuzmichev, M. G. Mikheev +5
We studied iron-based superconductors of various families with critical temperatures covering almost all range K. In natural arrays of contacts formed in these mater…
Emergent interacting spin islands in a depleted strong-leg Heisenberg ladder
D. Schmidiger, K. Yu. Povarov, S. Galeski +5
Properties of the depleted Heisenberg spin ladder material series (CHN)CuZnBr have been studied by the combination of magnetic measurements and neu…
Measurement back-action in stacked graphene quantum dots
Dominik Bischoff, Marius Eich, Oded Zilberberg +3
We present an electronic transport experiment in graphene where both classical and quantum mechanical charge detector back-action on a quantum dot are investigated. The device cons…
Pressure and magnetic field effects on a quasi-2D spin-1/2 Heisenberg antiferromagnet
N. Barbero, T. Shiroka, C. P. Landee +3
Cu(pz)2(ClO4)2 (with pz denoting pyrazine, C4H4N2) is among the best realizations of a two-dimensional spin-1/2 square-lattice antiferromagnet. Below T_N = 4.21 K, its weak interla…
Frequency-dependent polarization-angle-phase-shift in the microwave-induced magnetoresistance oscillations
Han-Chun Liu, Tianyu Ye, W. Wegscheider +1
Linear polarization angle, , dependent measurements of the microwave radiation-induced oscillatory magnetoresistance, , in high mobility GaAs/AlGaAs 2D electron devices…
Scanning gate imaging in confined geometries
R. Steinacher, A. A. Kozikov, C. Rössler +4
This article reports on tunable electron backscattering investigated with the biased tip of a scanning force microscope. Using a channel defined by a pair of Schottky gates, the br…