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Superconducting devices such as SQUIDS (Superconducting Quantum Interferometry Device) can perform ultra-sensitive measurements of magnetic fields. Leiden physicsts invented a method to 3-D-print these and other superconducting devices in minutes.

"Fabricating on a computer chip is a multi-step and demanding procedure, requiring dedicated facilities," says Kaveh Lahabi, a physicist at Leiden Universty. "It usually takes days to complete,"

Lahabi and co-authors have developed a new approach, in which Josephson junctions, essential parts of SQUIDS, can be printed on almost any surface in mere minutes, within an electron microscope.

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