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Updated: Jan 17, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
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Current-Induced Nonequilibrium Hidden Spin Polarization in Topological Dirac Semimetals

Yun-Jing Lai1, Meng-Rou Huang1, Hou-Jian Duan1

  • 1South China Normal University, South China Normal University, Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics, Guangzhou 510006, China and Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Frontier Research Institute for Physics, Guangzhou 510006, China.

Physical Review Letters
|September 22, 2025
PubMed
Summary

We discovered hidden spin polarization in topological Dirac semimetals, driven by quantum Hall effects. This allows for non-local control of magnetization using electric fields.

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