7 papers
Spin-polarized supercurrents and Josephson diode effect in altermagnets
Janus F. Niebuhr, Matthias Eschrig, Danilo Nikolić
We present a systematic theoretical study of the Josephson effect in junctions consisting of a d-wave altermagnet (AM) placed between two BCS superconductors (SC). In general, the…
Light-driven octupolar inverse Faraday effect and multipolar order in Mott insulators
Saikat Banerjee, Tara Steinhöfel, Florian Lange +2
Hidden multipolar orders in spin-orbit-coupled Mott insulators provide a promising setting for correlated quantum matter, yet their control and detection remain major challenges. H…
Necessary conditions for spin-resolved Josephson diode effect across strongly spin-polarized magnetic materials
Danilo NikoliÄ, Danilo Nikolić, Niklas L. Schulz +1
We present a set of necessary conditions for the appearance of charge and spin Josephson diode effects across strongly spin-polarized inhomogeneous magnetic materials (FM) placed b…
Purely even harmonic Josephson current due to crossed pair transmission across strongly spin-polarized materials
Niklas L. Schulz, Danilo NikoliÄ, Danilo Nikolić +1
We revisit the problem of the second harmonic generation in the current-phase relation across ferromagnetic bilayers placed between BCS superconductors. In particular, we consider…
Theory of quantum-geometric charge and spin Josephson diode effects in strongly spin-polarized hybrid structures with noncoplanar spin textures
Niklas L. Schulz, Danilo NikoliÄ, Matthias Eschrig
We present a systematic study of the spin-resolved Josephson diode effect (JDE) in strongly spin-polarized ferromagnets (sFM) coupled to singlet superconductors (SC) via ferromagne…
Quantum-geometric spin and charge Josephson diode effects
Niklas L. Schulz, Danilo NikoliÄ, Matthias Eschrig
We present a general mechanism for large charge and spin Josephson diode effects in strongly spin-polarized superconductor-ferromagnet hybrid structures with a noncoplanar spin tex…