This Ancient Iron Oxide Is Secretly Powering the Next Computing Revolution

Photo: Hematite – Essex County – Port Henry, New York, USA. Photo credit: UBC’s Pacific Museum of Earth (PME) via Flickr. CC BY-SA 2.0. Article by EPFL. SciTechDaily – April 29, 2025.

Researchers at EPFL have made a breakthrough by storing and manipulating digital data using charge-free spin waves, moving toward greener, faster computing.

Their latest discovery reveals that hematite, a common iron oxide, behaves in a way never before seen in magnetic materials, supporting two distinct magnon modes. This could finally enable repeated data writing and pave the way for sustainable, ultrafast spintronic devices that transform future technologies. […]

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