Altermagnetic superconducting diode effect

S Banerjee, MS Scheurer - Physical Review B, 2024 - APS
Nonreciprocal superconductivity, also known as the superconducting diode effect, has been
extensively studied in the presence of a magnetic field or some form of ferromagnetic order …

Enhancing the Josephson diode effect with Majorana bound states

J Cayao, N Nagaosa, Y Tanaka - Physical Review B, 2024 - APS
We consider phase-biased Josephson junctions with spin-orbit coupling under external
magnetic fields and study the emergence of the Josephson diode effect in the presence of …

Gate-tunable Josephson diode effect in Rashba spin-orbit coupled quantum dot junctions

D Debnath, P Dutta - Physical Review B, 2024 - APS
We theoretically explore the Josephson diode effect (JDE) in superconductor/quantum dot
(QD)/superconductor junction in the presence of a magnetic field and Rashba spin-orbit …

Tuning the Josephson diode response with an ac current

R Seoane Souto, M Leijnse, C Schrade, M Valentini… - Physical Review …, 2024 - APS
Josephson diodes are superconducting elements that show an asymmetry in the critical
current depending on the direction of the current. Here, we theoretically explore how an …

Supercurrent diode effect in helical superconductors

J Hasan, D Shaffer, M Khodas, A Levchenko - Physical Review B, 2024 - APS
In this work, we explore the generalities of the supercurrent diode effect. As an illustrative
example, we examine a model of a two-dimensional superconductor with Rashba-type spin …

Perfect superconducting diode effect in altermagnets

D Chakraborty, AM Black-Schaffer - arxiv preprint arxiv:2408.07747, 2024 - arxiv.org
We investigate intrinsic superconducting diode effect in the unconventional superconducting
state of $ d $-wave altermagnets. We find large diode efficiencies in the wide-reaching finite …

Superconducting diodes from magnetization gradients

M Roig, P Kotetes, BM Andersen - Physical Review B, 2024 - APS
The superconducting diode effect may exist in bulk systems as well as in junctions when
time-reversal and inversion symmetries are simultaneously broken. Magnetization gradients …

Superconducting diode effect in two-dimensional topological insulator edges and Josephson junctions

H Huang, T de Picoli, JI Väyrynen - Applied Physics Letters, 2024 - pubs.aip.org
The superconducting diode effect—the dependence of critical current on its direction—can
arise from the simultaneous breaking of inversion and time-reversal symmetry in a …

Superconducting diode effect in multiphase superconductors

D Shaffer, DV Chichinadze, A Levchenko - Physical Review B, 2024 - APS
We identify a particular mechanism for the intrinsic superconducting diode effect (SDE) in
multiphase superconductors. Using a Ginzburg-Landau and a microscopic two-band model …

Nonreciprocal superconducting transport and the spin Hall effect in gyrotropic structures

T Kokkeler, I Tokatly, FS Bergeret - SciPost Physics, 2024 - scipost.org
The search for superconducting systems exhibiting nonreciprocal transport and, specifically,
the diode effect, has proliferated in recent years. This trend has encompassed a wide variety …