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Magnetostriction is a property of magnetic materials that causes fluorescent lights and electrical transformers to buzz. This property causes the materials to change shape or dimensions as the magnetic field changes.
Magnetostriction also plays a big part in a new material that could lead to more energy-efficient computing. The research team that developed the material is led by the University of Michigan, and researchers from the University of Wisconsin and Purdue University also are participating.
The new material is twice as magnetostrictive and much cheaper than similar materials. It could contribute to magnetostrictive chips, which would cut the energy consumption of a wide range of electronics from cell phones to huge data centers.