SMRTR Science & EngineeringMay 26, 2026Interesting Engineering

Scientists successfully create long-predicted 3D magnetic structures ‘Hopfions’

SMRTR summary

Scientists have experimentally created "hopfions" for the first time — stable, 3D magnetic structures where electron spins form closed, linked loops pointing in every direction. Using ultra-fast femtosecond laser pulses on ultra-thin iron germanium crystals, researchers unlocked these structures, which could revolutionize data storage by enabling denser, faster, and more energy-efficient computing.

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