Story perspectives

Revolutionary Laser Technique Alters Iron's Magnetism at Room Temperature

11/5/2025

Summary

Story summary

University of Konstanz researchers, led by physicist Davide Bossini of the University of Konstanz, demonstrated that laser pulses can modify the magnetic properties of iron crystals at room temperature without relying on heating.
They use magnons, waves of spins in magnetic materials, and excite high-energy magnon pairs to shift magnetic behavior.
The findings were published in Science Advances.
The approach could enable faster, more energy-efficient devices with less heat generation.

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Story summary

University of Konstanz researchers, led by physicist Davide Bossini of the University of Konstanz, demonstrated that laser pulses can modify the magnetic properties of iron crystals at room temperature without relying on heating.
They use magnons, waves of spins in magnetic materials, and excite high-energy magnon pairs to shift magnetic behavior.
The findings were published in Science Advances.
The approach could enable faster, more energy-efficient devices with less heat generation.