Phase-engineering the Andreev band structure of a three-terminal Josephson junction

M Coraiola, DZ Haxell, D Sabonis, H Weisbrich… - Nature …, 2023 - nature.com
In hybrid Josephson junctions with three or more superconducting terminals coupled to a
semiconducting region, Andreev bound states may form unconventional energy band …

Demonstration of the nonlocal Josephson effect in Andreev molecules

DZ Haxell, M Coraiola, M Hinderling, SC Ten Kate… - Nano Letters, 2023 - ACS Publications
We perform switching current measurements of planar Josephson junctions (JJs) coupled by
a common superconducting electrode with independent control over the two …

Flux-tunable Josephson diode effect in a hybrid four-terminal Josephson junction

M Coraiola, AE Svetogorov, DZ Haxell, D Sabonis… - ACS …, 2024 - ACS Publications
We investigate the direction-dependent switching current in a flux-tunable four-terminal
Josephson junction defined in an InAs/Al two-dimensional heterostructure. The device …

Zeeman-and orbital-driven phase shifts in planar Josephson junctions

DZ Haxell, M Coraiola, D Sabonis, M Hinderling… - ACS …, 2023 - ACS Publications
We perform supercurrent and tunneling spectroscopy measurements on gate-tunable
InAs/Al Josephson junctions (JJs) in an in-plane magnetic field and report on phase shifts in …

Spin-degeneracy breaking and parity transitions in three-terminal Josephson junctions

M Coraiola, DZ Haxell, D Sabonis, M Hinderling… - arXiv preprint arXiv …, 2023 - arxiv.org
Harnessing spin and parity degrees of freedom is of fundamental importance for the
realization of emergent quantum devices. Nanostructures embedded in superconductor …

Quantum Transport in InSb Quantum Well Devices: Progress and Perspective

Z Lei, E Cheah, R Schott, CA Lehner… - Journal of Physics …, 2024 - iopscience.iop.org
InSb, a narrow-band III-V semiconductor, is known for its small bandgap, small electron
effective mass, high electron mobility, large effective g-factor, and strong spin-orbit …

Subgap-state-mediated transport in superconductor--semiconductor hybrid islands: Weak and strong coupling regimes

M Valentini, RS Souto, M Borovkov, P Krogstrup… - arXiv preprint arXiv …, 2024 - arxiv.org
Superconductor-semiconductor hybrid systems play a crucial role in realizing nanoscale
quantum devices, including hybrid qubits, Majorana bound states, and Kitaev chains. For …

Development of a Nb-based semiconductor-superconductor hybrid platform

S Telkamp, T Antonelli, C Todt, M Hinderling… - arXiv preprint arXiv …, 2024 - arxiv.org
Semiconductor-superconductor hybrid materials are used as a platform to realise Andreev
bound states, which hold great promise for quantum applications. These states require …

Observation of an abrupt 3D-2D morphological transition in thin Al layers grown by MBE on InGaAs surface

A Elbaroudy, B Khromets, F Sfigakis… - Journal of Vacuum …, 2024 - pubs.aip.org
Among superconductor/semiconductor hybrid structures, in situ aluminum (Al) grown on
InGaAs/InAs is widely pursued for the experimental realization of Majorana Zero Mode …

Phase dynamics and Andreev bound state spectroscopy in planar Josephson junctions

D Haxell - 2023 - research-collection.ethz.ch
Josephson junctions (JJs) are an integral component in quantum computing, low
temperature electronics, and fundamental physics research. Hybrid superconductor …