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ETH Zürich Unveils Handheld Superconducting Magnets Exceeding 40 Tesla

3/20/2026

Summary

Story summary

ETH Zürich researchers developed superconducting magnets that generate magnetic fields above 40 tesla, reaching 42.3 tesla.
The magnets run on less than one watt and can fit in a hand, compared with the 26-tesla benchmark.
The achievement could make high-field nuclear magnetic resonance (NMR) more accessible to university labs and research hospitals.
A patent application is underway for this technology to improve field homogeneity and enable NMR beyond 40 tesla.

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Story summary

ETH Zürich researchers developed superconducting magnets that generate magnetic fields above 40 tesla, reaching 42.3 tesla.
The magnets run on less than one watt and can fit in a hand, compared with the 26-tesla benchmark.
The achievement could make high-field nuclear magnetic resonance (NMR) more accessible to university labs and research hospitals.
A patent application is underway for this technology to improve field homogeneity and enable NMR beyond 40 tesla.