The crystal structure of bismuth ferrite (BiFeO3), the multiferroic material at the center of the Brown study. Image: Nan Wang and Ya Yang, via Wikimedia Commons, CC BY 4.0. AI's appetite for electricity has become one of technology's defining problems. Better algorithms help, but some of the biggest long-term gains could come from rethinking the materials inside chips. Engineers at Brown University reported on October 28, 2026 that they have solved a long-standing obstacle for one promising...