Researchers at Brown University have achieved a major materials-science breakthrough by engineering altermagnetic behavior inside ultrathin multiferroic films—a discovery poised to slash the massive electricity consumption of artificial intelligence hardware. Unlike conventional ferromagnets that suffer from stray magnetic interference or antiferromagnets whose signals are hard to read, altermagnets deliver rapid switching speeds, dense chip packing, and strong electrical readout signals simultaneously. This atomic-level engineering paves the way for compact, energy-efficient memory and logic processors.
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