University of Chicago physicist Thomas Rosenbaum has found a way to extend the temperature range of indium antimonide magnetosensors by forming them into a polycrystalline material. Magnetic sensors like those used to measure engine RPMs tend to stop responding at high temperatures due to lattice vibrations. The new polycrystalline indium antimonide magnetic sensors, however, damp out the damaging vibrations, thereby extending their temperature range.

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