Spin-Hall angle temperature dependence in NiFe / MnBi 2 Te 4 heterostructures
- 26 August 2026
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 114 (7) , 074433
Abstract
Pairing a ferromagnet with the MnBi${}_{2}$Te${}_{4}$ offers a promising route to efficient spin-to-charge conversion, but how well it performs across temperature had remained unmapped. Combining ferromagnetic resonance with inverse spin-Hall voltage measurements from 20--290 K, the authors show here that the spin-Hall angle stays nearly constant below approximately 130 K, then becomes unreliable as spin rectification and shifting damping take over. The results establish the material as a robust platform for cryogenic spin-orbit and topological spintronics.Keywords
Funding Information
- Russian Science Foundation (22-12-00367-P)
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