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A magnetic breakthrough could help AI chips use far less energy

Here’s an exciting step toward more energy-efficient computing: Brown University researchers have found a way to make ultrathin bismuth ferrite films without losing their useful electrical and magnetic properties. By growing the material on a specially chosen foundation and adding a metallic layer, they overcome the “dead layer” problem that had limited its use in computer chips. The films can remain ferroelectric and magnetic even when only a few angstroms thick. That could eventually help power computer memory and logic, including AI hardware, with much less energy.
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