Zii364 -

– Early attempts at Cr‑substitution have shown ferromagnetic ordering up to 45 K. Optimizing dopant concentration and annealing protocols may raise the Curie temperature above 100 K, making the material viable for spin‑filter devices .

Which you're looking at (e.g., Steam Deck, Retroid)? Your budget range for a handheld? Whether you prefer native hardware or emulation ? zii364

Given the "fly wire" soldering and custom internals, these units are best suited for hobbyists who are comfortable with basic electronics repair. zii364