Merging magnetism and superconductivity could enable loss‑free spin flow
Researchers from the University of British Columbia, Max Planck Institute for Solid State Research and University of Nevada have proposed a new class of quantum materials - superconducting altermagnets - that could carry persistent spin-polarized currents with zero dissipation, marking a potential breakthrough in superconducting spintronics.
The team's theoretical study shows how these materials can host spin supercurrents that remain stable even in the presence of spin-orbit coupling (SOC) and magnetic disorder - conditions that usually extinguish spin transport in normal metals.