Gerrit Behner
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View article: Aharonov-Bohm and Altshuler-Aronov-Spivak oscillations in the quasiballistic regime in phase-pure GaAs/InAs core/shell nanowires
Aharonov-Bohm and Altshuler-Aronov-Spivak oscillations in the quasiballistic regime in phase-pure GaAs/InAs core/shell nanowires Open
The realization of various qubit systems based on high-quality hybrid superconducting quantum devices is often achieved using semiconductor nanowires. For such hybrid devices, a good coupling between the superconductor and the conducting s…
View article: Superconducting Diode Effect in Selectively-Grown Topological Insulator based Josephson Junctions
Superconducting Diode Effect in Selectively-Grown Topological Insulator based Josephson Junctions Open
The Josephson diode effect, where the critical current magnitude depends on its direction, arises when both time-reversal and inversion symmetries are broken - often achieved by a combination of spin-orbit interaction and applied magnetic …
View article: Superconductive Coupling Effects in Selectively Grown Topological Insulator-Based Three-Terminal Junctions
Superconductive Coupling Effects in Selectively Grown Topological Insulator-Based Three-Terminal Junctions Open
The combination of an ordinary s-type superconductor with three-dimensional topological insulators creates a promising platform for fault-tolerant topological quantum computing circuits based on Majorana braiding. The backbone of the braid…
View article: Superconductive coupling and Josephson diode effect in selectively-grown topological insulator based three-terminal junctions
Superconductive coupling and Josephson diode effect in selectively-grown topological insulator based three-terminal junctions Open
The combination of an ordinary s-type superconductor with three-dimensional topological insulators creates a promising platform for fault-tolerant topological quantum computing circuits based on Majorana braiding. The backbone of the braid…
View article: Topological insulator based axial superconducting quantum interferometer structures
Topological insulator based axial superconducting quantum interferometer structures Open
Nanoscale superconducting quantum interference devices are fabricated in-situ from a single Bi 0.26 Sb 1.74 Te 3 nanoribbon that is defined using selective-area growth and contacted with superconducting Nb electrodes via a shadow mask tech…
View article: Topological insulator based axial superconducting quantum interferometer structures
Topological insulator based axial superconducting quantum interferometer structures Open
Nanoscale superconducting quantum interference devices (SQUIDs) are fabricated in-situ from a single Bi$_{0.26}$Sb$_{1.74}$Te$_{3}$ nanoribbon that is defined using selective-area growth and contacted with superconducting Nb electrodes via…
View article: Fourier transformation based analysis routine for intermixed longitudinal and transversal hysteretic data for the example of a magnetic topological insulator
Fourier transformation based analysis routine for intermixed longitudinal and transversal hysteretic data for the example of a magnetic topological insulator Open
We present a symmetrization routine that optimizes and eases the analysis of imperfect, experimental data featuring the anomalous Hall hysteresis. This technique can be transferred to any hysteresis with (point-)symmetric behavior. The imp…
View article: In-plane magnetic field driven conductance modulations in topological insulator kinks
In-plane magnetic field driven conductance modulations in topological insulator kinks Open
We present low-temperature magnetoconductance measurements on Bi$_{1.5}$Sb$_{0.5}$Te$_{1.8}$Se$_{1.2}$ kinks with ribbon-shaped legs. The conductance displays a clear dependence on the in-plane magnetic field orientation. The conductance m…
View article: Current-induced magnetization switching in a magnetic topological insulator heterostructure
Current-induced magnetization switching in a magnetic topological insulator heterostructure Open
We present the current-induced switching of the internal magnetization direction in a magnetic topological insulator/topological insulator heterostructure in the quantum anomalous Hall regime. The switching process is based on the bias cur…
View article: Fourier transformation based analysis routine for intermixed longitudinal and transversal hysteretic data for the example of a magnetic topological insulator
Fourier transformation based analysis routine for intermixed longitudinal and transversal hysteretic data for the example of a magnetic topological insulator Open
We present a symmetrization routine that optimizes and eases the analysis of data featuring the anomalous Hall effect. This technique can be transferred to any hysteresis with (point-)symmetric behaviour. The implementation of the method i…
View article: Aharonov-Bohm Interference and Phase-Coherent Surface-State Transport in Topological Insulator Rings
Aharonov-Bohm Interference and Phase-Coherent Surface-State Transport in Topological Insulator Rings Open
We present low-temperature magnetotransport measurements on selectively grown Sb2Te3-based topological insulator ring structures. These devices display clear Aharonov-Bohm oscillations in the conductance originating from phase-coherent tra…
View article: Aharonov-Bohm interference and phase-coherent surface-state transport in topological insulator rings
Aharonov-Bohm interference and phase-coherent surface-state transport in topological insulator rings Open
We present low-temperature magnetotransport measurements on selectively-grown Sb$_2$Te$_3$-based topological insulator ring structures. These topological insulator ring geometries display clear Aharonov-Bohm oscillations in the conductance…