Magnetic refrigeration at cryogenic temperatures is crucial for technologies like hydrogen liquefaction and quantum computing. Here, the authors investigate multiferroic hexagonal manganites, revealing that rare-earth magnetism drives significant reversible temperature changes, up to 20.1 K for HoMnO3, suggesting potential optimization for other magnetic oxide systems in cryogenic refrigeration.
- Ruben Dragland
- Catalina Salazar Mejía
- Jan Schultheiß
