Story perspectives

New Framework Challenges Spin Hall Theory of Magnetoresistance

12/20/2025

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Summary

Story summary

Prof. Lijun Zhu and colleagues show that magnetoresistance arises from electron scattering at interfaces, governed by magnetization and interfacial electric fields, not spin currents.
They present a two-vector magnetoresistance (MR) framework that explains UMR across systems, including those without spin Hall materials.
A systematic review supports this model and contradicts previous spin-current-based theories.
The findings offer a unified explanation for magnetoresistance and challenge the long-accepted spin Hall magnetoresistance theory.

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Story summary

Prof. Lijun Zhu and colleagues show that magnetoresistance arises from electron scattering at interfaces, governed by magnetization and interfacial electric fields, not spin currents.
They present a two-vector magnetoresistance (MR) framework that explains UMR across systems, including those without spin Hall materials.
A systematic review supports this model and contradicts previous spin-current-based theories.
The findings offer a unified explanation for magnetoresistance and challenge the long-accepted spin Hall magnetoresistance theory.