Millimeter-scale meron lattices that can serve as spin injectors for LEDs

https://phys.org/news/2023-07-millimeter-scale-meron-lattices-injectors.html

"thin iron film sandwiched between palladium and magnesium oxide films... high-magnetic-field - assisted growth, mm-scale meron lattices... 22.5% circularly polarized electroluminescence, room temperature, without external magnetic fields... interfacial Dzyaloshinskii–Moriya interaction on gallium nitride wafer... transfer chirality from merons to electrons to photons... wide-bandgap semiconductors, T-LEDs with higher light polarization and different wavelengths, bioimaging, 3D displays, and quantum communication"

Related: Novel organic-inorganic semiconductor generates circularly polarized light
https://phys.org/news/2023-10-organic-inorganic-semiconductor-generates-circularly-polarized.html