399 citations · 887 across the 23 of their papers we have counts for
23 papers
Modulations of the Work Function and Morphology of a Single MoS2 Nanotube by Charge Injection
M. Remškar, J. Jelenc, N. Czepurny +4
A current was injected into a single MoS2 nanotube using an atomic-force-microscopy probe. The trapped electrons and holes caused a partial collapse of the nanotube and its helical…
Tuning the supercurrent distribution in parallel ballistic graphene Josephson junctions
Philipp Schmidt, Luca Banszerus, Benedikt Frohn +7
We report on a ballistic and fully tunable Josephson junction system consisting of two parallel ribbons of graphene in contact with superconducting MoRe. By electrostatic gating of…
Stepwise fabrication and optimization of coplanar waveguide resonator hybrid devices
N. Kellner, N. Hüttner, M. Will +2
From the background of microwave-optomechanical experiments involving carbon nanotubes, the optimization of superconducting coplanar waveguide resonator devices is discussed. Two d…
Optomechanical coupling and damping of a carbon nanotube quantum dot
N. Hüttner, S. Blien, P. Steger +3
Carbon nanotubes are excellent nano-electromechanical systems, combining high resonance frequency, low mass, and large zero-point motion. At cryogenic temperatures they display hig…
Non-Destructive Low-Temperature Contacts to MoS2 Nanoribbon and Nanotube Quantum Dots
R. T. K. Schock, J. Neuwald, W. Möckel +4
Molybdenum disulfide nanoribbons and nanotubes are quasi-1D semiconductors with strong spin-orbit interaction, a nanomaterial highly promising for quantum electronic applications.…
Nanomechanical characterization of the Kondo charge dynamics in a carbon nanotube
K. J. G. Götz, D. R. Schmid, F. J. Schupp +3
Using the transversal vibration resonance of a suspended carbon nanotube as charge detector for its embedded quantum dot, we investigate the case of strong Kondo correlations betwe…
Shaping electron wave functions in a carbon nanotube with a parallel magnetic field
M. Marganska, D. R. Schmid, A. Dirnaichner +4
A magnetic field, through its vector potential, usually causes measurable changes in the electron wave function only in the direction transverse to the field. Here we demonstrate e…
Towards carbon nanotube growth into superconducting microwave resonator geometries
S. Blien, K. J. G. Götz, P. L. Stiller +4
The in-place growth of suspended carbon nanotubes facilitates the observation of both unperturbed electronic transport spectra and high-Q vibrational modes. For complex structures…
Secondary electron interference from trigonal warping in clean carbon nanotubes
A. Dirnaichner, M. del Valle, K. J. G. Götz +5
We investigate Fabry-Perot interference in an ultraclean carbon nanotube resonator. The conductance shows a clear superstructure superimposed onto conventional Fabry-Perot oscillat…
Co-sputtered MoRe thin films for carbon nanotube growth-compatible superconducting coplanar resonators
K. J. G. Götz, S. Blien, P. L. Stiller +7
Molybdenum rhenium alloy thin films can exhibit superconductivity up to critical temperatures of . At the same time, the films are highly stable in the high-tempe…
Thermally induced subgap features in the cotunneling spectroscopy of a carbon nanotube
S. Ratz, A. Donarini, D. Steininger +5
We report on nonlinear cotunneling spectroscopy of a carbon nanotube quantum dot coupled to Nb superconducting contacts. Our measurements show rich subgap features in the stability…
Liquid-induced damping of mechanical feedback effects in single electron tunneling through a suspended carbon nanotube
D. R. Schmid, P. L. Stiller, C. Strunk +1
In single electron tunneling through clean, suspended carbon nanotube devices at low temperature, distinct switching phenomena have regularly been observed. These can be explained…
Sub-gap spectroscopy of thermally excited quasiparticles in a Nb contacted carbon nanotube quantum dot
M. Gaass, S. Pfaller, T. Geiger +4
We present electronic transport measurements of a single wall carbon nanotube quantum dot coupled to Nb superconducting contacts. For temperatures comparable to the superconducting…
Broken SU(4) symmetry in a Kondo-correlated carbon nanotube
D. R. Schmid, S. Smirnov, M. Marganska +5
Understanding the interplay between many-body phenomena and non-equilibrium in systems with entangled spin and orbital degrees of freedom is a central objective in nano-electronics…
Temperature dependence of Andreev spectra in a superconducting carbon nanotube quantum dot
A. Kumar, M. Gaim, D. Steininger +4
Tunneling spectroscopy of a Nb coupled carbon nanotube quantum dot reveals the formation of pairs of Andreev bound states (ABS) within the superconducting gap. A weak replica of th…
Negative frequency tuning of a carbon nanotube nano-electromechanical resonator
P. L. Stiller, S. Kugler, D. R. Schmid +2
A suspended, doubly clamped single wall carbon nanotube is characterized as driven nano-electromechanical resonator at cryogenic temperatures. Electronically, the carbon nanotube d…
Transversal Magnetic Anisotropy in Nanoscale PdNi-Strips
D. Steininger, A. K. Huettel, M. Ziola +4
We investigate submicron ferromagnetic PdNi thin-film strips intended as contact electrodes for carbon nanotube-based spintronic devices. The magnetic anisotropy and micromagnetic…
Magnetic damping of a carbon nanotube NEMS resonator
D. R. Schmid, P. L. Stiller, Ch. Strunk +1
A suspended, doubly clamped single wall carbon nanotube is characterized at cryogenic temperatures. We observe specific switching effects in dc-current spectroscopy of the embedded…
Universality of the Kondo effect in quantum dots with ferromagnetic leads
M. Gaass, A. K. Huettel, K. Kang +3
We investigate quantum dots in clean single-wall carbon nanotubes with ferromagnetic PdNi-leads in the Kondo regime. In most odd Coulomb valleys the Kondo resonance exhibits a pron…
Single electron tunneling through high-Q single-wall carbon nanotube NEMS resonators
A. K. Huettel, H. B. Meerwaldt, G. A. Steele +4
By first lithographically fabricating contact electrodes and then as last step growing carbon nanotubes with chemical vapour deposition across the ready-made chip, many potential c…
Strong coupling between single-electron tunneling and nano-mechanical motion
G. A. Steele, A. K. Huettel, B. Witkamp +4
Nanoscale resonators that oscillate at high frequencies are useful in many measurement applications. We studied a high-quality mechanical resonator made from a suspended carbon nan…
Characterisation of Ferromagnetic Contacts to Carbon Nanotubes
D. Preusche, S. Schmidmeier, E. Pallecchi +4
We present an investigation of different thin-film evaporated ferromagnetic materials for their suitability as electrodes in individual single-wall and multi-wall carbon nanotube-b…
Spin blockade in ground state resonance of a quantum dot
A. K. Huettel, H. Qin, A. W. Holleitner +5
We present measurements on spin blockade in a laterally integrated quantum dot. The dot is tuned into the regime of strong Coulomb blockade, confining ~ 50 electrons. At certain el…