How 90 Claude Opus 5.5 agents found a 27-year-old compound in 3 days to solve computing's heat problem

More than 90 Claude Opus 5.5 agents spent three days searching for materials that could enable cooler spin-based computing. They identified two room-temperature magnetic semiconductor candidates; YBaMnFeO₅ and KV[Cr(CN)₆]. Chemists synthesized KV[Cr(CN)₆] back in 1999. Its ability to filter electrons by spin while canceling external magnetism sat unnoticed for 27 years.