Supercurrent transmission through Ni/Ru/Ni synthetic antiferromagnets
arXiv:2108.10376 · doi:10.1063/5.0068524
Abstract
Josephson junctions containing ferromagnetic materials are generating interest for use in superconducting electronics and cryogenic memory. Optimizing the performance of such junctions is an ongoing effort, requiring exploration of a broad range of magnetic systems. Here we study supercurrent transmission through Ni/Ru/Ni synthetic antiferromagnets, with the idea that their magnetic properties may be superior to those of isolated Ni layers. We find that the decay of the supercurrent as a function of Ni thickness is very slow, with a decay length of 7.5 0.8 nm. We also characterize the magnetic properties of the synthetic antiferromagnets as a function of Ni and Ru thicknesses.
References in corpus (11)
- Proximity effects in superconductor-ferromagnet heterostructures
- Coupling of two superconductors through a ferromagnet : evidence for a pi-junction
- Critical Current Oscillations in Strong Ferromagnetic Pi-Junctions
- Controllable 0-pi Josephson junctions containing a ferromagnetic spin valve
- Oscillations of the superconducting critical current in Nb-Cu-Ni-Cu-Nb junctions
- Supercurrent in Long SFFS Junctions with Antiparallel Domain Configuration
- Experimental demonstration of a Josephson magnetic memory cell with a programmable π-junction
- Josephson current in a superconductor-ferromagnet junction with two non-collinear magnetic domains
- Josephson Junctions with a synthetic antiferromagnetic interlayer
- Critical Current Oscillations of Elliptical Josephson Junctions with Single-Domain Ferromagnetic Layers
- Spin-memory loss at Co/Ru interfaces