Simranjeet Singh

Stories

Hall effect works with in-plane magnetic fields, Carnegie Mellon team shows

As of September 2026: Principal investigator leading the discovery

For 147 years, physicists relied on a simple rule: the Hall effect needs a magnetic field pointing straight at a material's surface. Carnegie Mellon researchers just showed that rule was wrong.

Updated Sep 6

Notable Quotes

For a long time, people thought the Hall effect only worked when the magnetic field was applied perpendicular to the plane of the film. We've shown that that's not true: you can also get a response when the field is in-plane.

from Hall effect works with in-plane magnetic fields, Carnegie Mellon team shows · Updated Sep 6

You can do multidimensional magnetic sensing with only one sensor. Before, you needed two sensors to measure the magnetic field in two directions.

from Hall effect works with in-plane magnetic fields, Carnegie Mellon team shows · Updated Sep 6