110 citations · 289 across the 13 of their papers we have counts for
13 papers
Imaging short- and long-range magnetic order in a quantum anomalous Hall insulator
Andriani Vervelaki, Boris Gross, Daniel Jetter +11
The quantum anomalous Hall effect has been observed in several magnetically doped topological insulators, where its robustness and macroscopic magnetization properties have been ta…
Simulation and measurement of stray fields for the manipulation of spin-qubits in one- and two-dimensional arrays
Michele Aldeghi, Rolf Allenspach, Andriani Vervelaki +5
The inhomogeneous magnetic stray field of micromagnets has been extensively used to manipulate electron spin qubits. By means of micromagnetic simulations and scanning superconduct…
Scanning NV magnetometry of focused-electron-beam-deposited cobalt nanomagnets
Liza Žaper, Peter Rickhaus, Marcus Wyss +3
Focused-electron-beam-induced deposition is a promising technique for patterning nanomagnets for spin qubit control in a single step. We fabricate cobalt nanomagnets in such a proc…
Mechanical mode imaging of a high-Q hybrid hBN/SiN resonator
David Jaeger, Francesco Fogliano, Thibaud Ruelle +3
We image and characterize the mechanical modes of a 2D drum resonator made of hBN suspended over a high-stress SiN membrane. Our measurements demonstrate hybridization betw…
A compact and versatile cryogenic probe station for quantum device testing
Mathieu de Kruijf, Simon Geyer, Toni Berger +4
Fast feedback from cryogenic electrical characterization measurements is key for the development of scalable quantum computing technology. At room temperature, high-throughput devi…
Electron-beam lithography of nanostructures at the tips of scanning probe cantilevers
Luca Forrer, Aurèle Kamber, Armin Knoll +2
We developed a process to fabricate nanoscale metallic gate electrodes on scanning probe cantilevers, including on the irregular surface of protruding cantilever tips. The process…
A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K
Thibaud Ruelle, David Jaeger, Francesco Fogliano +2
We describe an apparatus for the implementation of hybrid optomechanical systems at 4 K. The platform is based on a high-finesse, micrometer-scale fiber Fabry-Perot cavity, which c…
Force sensing with nanowire cantilevers
F. R. Braakman, M. Poggio
Nanometer-scale structures with high aspect ratio such as nanowires and nanotubes combine low mechanical dissipation with high resonance frequencies, making them ideal force transd…
Optimized single-shot laser ablation of concave mirror templates on optical fibers
Thibaud Ruelle, Martino Poggio, Floris R. Braakman
We realize mirror templates on the tips of optical fibers using a single-shot CO laser ablation procedure. We perform a systematic study of the influence of the pulse power, pu…
Coherent two-mode dynamics of a nanowire force sensor
Floris R. Braakman, Nicola Rossi, Gözde Tütüncüoglu +2
Classically coherent dynamics analogous to those of quantum two-level systems are studied in the setting of force sensing. We demonstrate quantitative control over the coupling bet…
Vectorial scanning force microscopy using a nanowire sensor
N. Rossi, F. R. Braakman, D. Cadeddu +4
Self-assembled nanowire (NW) crystals can be grown into nearly defect-free nanomechanical resonators with exceptional properties, including small motional mass, high resonant frequ…
A quantum fiber-pigtail
Davide Cadeddu, Jean Teissier, Floris Braakman +7
We present the experimental realization of a quantum fiber-pigtail. The device consists of a semiconductor quantum-dot embedded into a conical photonic wire that is directly connec…
Nonlinear motion and mechanical mixing in as-grown GaAs nanowires
F. R. Braakman, D. Cadeddu, G. Tütüncüoglu +4
We report nonlinear behavior in the motion of driven nanowire cantilevers. The nonlinearity can be described by the Duffing equation and is used to demonstrate mechanical mixing of…