{"id":20157,"date":"2026-10-02T12:15:46","date_gmt":"2026-10-02T12:15:46","guid":{"rendered":"https:\/\/news.theck1.no\/?p=20157"},"modified":"2026-10-02T12:15:46","modified_gmt":"2026-10-02T12:15:46","slug":"vertical-quantum-sensor-could-reveal-nanoscale-magnetic-patterns-in-quantum-materials-2","status":"publish","type":"post","link":"https:\/\/news.theck1.no\/?p=20157","title":{"rendered":"Vertical quantum sensor could reveal nanoscale magnetic patterns in quantum materials"},"content":{"rendered":"

AI-rewritten:<\/strong> This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.<\/p>\n

Phys.org • September 24, 2026<\/strong><\/div>\n\n

Researchers at the University of Twente have developed a vertical quantum sensor designed to reveal nanoscale magnetic patterns in quantum materials. Quantum materials conduct electricity without loss or only along their edges, but existing sensors struggle because magnetic fields weaken quickly with distance. When a sensor lies flat on a chip, the rest of the device keeps it several micrometers away from the material, causing detail to be lost. To solve this, the team placed the sensor on top of a pyramid made of silicon, allowing it to get extremely close to the surface for imaging.<\/p>\n

<\/p>\n

The pyramid structure is created using a technique called corner lithography. Researchers etch pits shaped like upside-down pyramids into a slice of silicon and then deposit a thin film of glass-like material over them. By removing most of the film, only a frame of fine wires remains at the sharp edges. A layer of niobium, a metal that becomes superconducting at very low temperatures, is applied to these wires. Finally, a beam of charged particles cuts two constrictions into the ring at the top, completing the sensor.<\/p>\n

This device operates effectively above one tesla of magnetic field, roughly 20,000 times stronger than Earth’s magnetic field, which usually destroys superconductivity in sensitive sensors. The frame consists of four wires; while only two are needed for measurement, the other two act as extra connections to steer and tune the sensor during scanning. Unlike previous methods that produced one sensor at a time through handwork, this process uses standard chip industry steps on silicon wafers, producing hundreds of usable tips with adjustable ring sizes ranging from micrometers down to 100 nanometers.<\/p>\n

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Source:<\/strong> Phys.org • September 24, 2026<\/p>\n

Read the original article at Phys.org →<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story. Phys.org • September 24, 2026 Researchers at the University of Twente have developed a vertical quantum sensor designed to<\/p>\n

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