Simon Reinhardt

Simon Reinhardt
Universität Regensburg | UR · Institute of Experimental and Applied Physics

MSc

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10
Publications
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105
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Publications

Publications (10)
Article
Full-text available
Lab::Measurement is a framework for test and measurement automatization using Perl 5. While primarily developed with applications in mesoscopic physics in mind, it is widely adaptable. Internally, a layer model is implemented. Communication protocols such as IEEE 488, USB Test & Measurement, or, e.g., VXI-11 are addressed by the connection layer. T...
Article
We present simultaneous measurements of Josephson inductance and dc transport characteristics of ballistic Josephson junctions based upon an epitaxial Al-InAs heterostructure. The Josephson inductance at finite current bias directly reveals the current-phase relation. The proximity-induced gap, the critical current and the average value of the tran...
Article
Full-text available
Transport is non-reciprocal when not only the sign, but also the absolute value of the current depends on the polarity of the applied voltage. It requires simultaneously broken inversion and time-reversal symmetries, for example, by an interplay of spin–orbit coupling and magnetic field. Hitherto, observation of nonreciprocity was tied to resistivi...
Preprint
Full-text available
Most of 2D superconductors are of type II, i.e., they are penetrated by quantized vortices when exposed to out-of-plane magnetic fields. In presence of a supercurrent, a Lorentz-like force acts on the vortices, leading to drift and dissipation. The current-induced vortex motion is impeded by pinning at defects, enabling the use of superconductors t...
Article
Simultaneous breaking of inversion- and time-reversal symmetry in Josephson junction leads to a possible violation of the I(ϕ) = −I(−ϕ) equality for the current-phase relation. This is known as anomalous Josephson effect and it produces a phase shift ϕ 0 in sinusoidal current-phase relations. In ballistic Josephson junctions with non-sinusoidal cur...
Preprint
Full-text available
Simultaneous breaking of inversion- and time-reversal symmetry in Josephson junction leads to a possible violation of the $I(\varphi)=-I(-\varphi)$ equality for the current-phase relation. This is known as anomalous Josephson effect and it produces a phase shift $\varphi_0$ in sinusoidal current-phase relations. In ballistic Josephson junctions wit...
Preprint
Full-text available
Transport is called nonreciprocal when not only the sign, but also the absolute value of the current, depends on the polarity of the applied voltage. It requires simultaneously broken inversion and time-reversal symmetries, e.g., by the interplay of spin-orbit coupling and magnetic field. So far, observation of nonreciprocity was always tied to res...
Preprint
Full-text available
We present simultaneous measurements of Josephson inductance and DC transport characteristics of ballistic Josephson junctions based upon an epitaxial Al-InAs heterostructure. The Josephson inductance at finite current bias directly reveals the current-phase relation. The proximity-induced gap, the critical current and the average value of the tran...
Article
Full-text available
We demonstrate low‐temperature transport spectroscopy measurements on a quantum dot lithographically defined in a multiwall MoS2 nanotube. At T = 300 mK, clear Coulomb blockade is observed, with charging energies in the range of 1 meV. In single electron tunneling, discrete conductance resonances are visible at finite bias. Additionally, a magnetic...
Preprint
Full-text available
We demonstrate low-temperature transport spectroscopy measurements on a quantum dot lithographically defined in a multiwall MoS2 nanotube. At T = 300 mK, clear Coulomb blockade is observed, with charging energies in the range of 1 meV. In single electron tunneling, discrete conductance resonances are visible at finite bias. Additionally, a magnetic...

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