Room temperature electron spin control of optoelectronics without a ferromagnet or magnetic field

https://phys.org/news/2024-07-miracle-filter-bought-spintronic-devices.html

"replaced store-bought LEDs' electrodes with these layers: 1st is transparent metallic electrode; 2nd blocks electrons having spin in wrong direction (patented chirality-induced spin filter made from hybrid organic-inorganic halide perovskite, spin-aligned electrons then recombine in 3rd layer, standard semiconductor producing spin-aligned electrons and highly circularly polarized light... less burdensome/ more reliable spin-orientation turning than using ferromagnets/ magnetic fields... spin-LEDs, magnetic memory"