For 150 years physicists believed the Hall effect only worked with a perpendicular magnetic field. Carnegie Mellon University researchers have now demonstrated an in-plane anomalous Hall effect, proving charges can also be deflected when the field lies within the material plane. Published in Nature Materials, the team built atomically thin devices from tantalum iridium telluride paired with a magnetic layer. The result is a single ultrathin device that can detect magnetic fields along multiple axes, potentially replacing two separate sensors with one. The team is now testing room-temperature operation for practical applications.
Scientists Overturn Century-Old Hall Effect Assumption
Carnegie Mellon researchers show the Hall effect works even with in-plane magnetic fields, overturning a 150-year-old assumption. Published in Nature Materials, the finding could enable multi-axis magnetic sensors.
Key Takeaways
- Carnegie Mellon researchers show the Hall effect works even with in-plane magnetic fields, overturning a 150-year-old assumption.
- Published in Nature Materials, the finding could enable multi-axis magnetic sensors.
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