The Simpler Origin of Universal Magnetoresistance
For years, unusual magnetoresistance (UMR) was explained by spin Hall currents — complex physics involving electron spin flow. But UMR appears everywhere, even where spin effects shouldn't work. New research reveals a simpler truth: scattering at interfaces depends on two vectors — magnetization M and electric field E — without any spin currents at all. The relative angle between M and E controls everything.
Zhu, Liu & Wang — National Science Review, 2025
Mouse X: rotate magnetization | Click: palette | Space: pause | R: reset | I: info