Supercurrent diodes are nonreciprocal electronic elements whose switching current
depends on their flow direction. Recently, a variety of composite systems combining different …

In Josephson diodes the asymmetry between positive and negative current branch of the
current-phase relation leads to a polarity-dependent critical current and Josephson …

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 …

In bulk superconductors or Josephson junctions formed in materials with spin-orbit
interaction, the critical current can depend on the direction of current flow or of applied …

There has recently been a surge of interest in studying the superconducting diode effect
(SDE) partly due to the possibility of uncovering the intrinsic properties of a material system …

We study charge transport in voltage-biased single-channel junctions involving helical
superconductors with finite Cooper pair momentum. For a Josephson junction, the …

Majorana bound states (MBSs) are quasiparticles that are their own antiparticles. They are
predicted to emerge as zero-energy modes localized at the boundary of a topological …

We introduce the notion of nonreciprocal superconductors where inversion and time-
reversal symmetries are broken, giving rise to an asymmetric energy dispersion. We …

Graphene-based van der Waals heterostructures take advantage of tailoring spin-orbit
coupling (SOC) in the graphene layer by the proximity effect. At long wavelength—saddled …

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 …