Giant momentum-dependent spin splitting in centrosymmetric low- Z antiferromagnets
By Linding Yuan, Zhi Wang, Jun Luo, E. Rashba, Alex Zunger. 2020
459 citations recorded by the source corpus.
The traditional bulk Rashba effect predicts spin-orbit coupling induced wave-vector-dependent spin splitting between energy bands in nonmagnetic solids that lack spatial inversion symmetry. The authors show here how the violation of magnetic symmetry leads instead to a few prototypes of momentum-dependent spin splitting of energy bands that are induced by antiferromagnetism. This discovery broadens the spintronics playing field to include centrosymmetric compounds, even made of light elements with low spin-orbit coupling. Atomistic density functional calculations show that giant splitting above 200 meV is possible between top two valence bands.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/43fc0eedf6d4e973c55f01829461937b032167be
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Topological superconductivity in two-dimensional altermagnetic metals (2023, background): “Unlike usual antiferromagnetism due to symmetry reason 19,20 , AM results in momentum-dependent spin splitting to the band structure, resembling a spin-orbital coupling effect but without spin-momentum locking 32 .”
- Crystal-symmetry-paired spin–valley locking in a layered room-temperature metallic altermagnet candidate (2024, unknown): “Quasi-particle interference patterns show the suppression of intervalley scattering due to the spin selection rules that are a direct consequence of the spin–valley locking.”
- Two-dimensional altermagnets: Superconductivity in a minimal microscopic model (2023, background): “So far, RuO 2 has been the main focus of attention [27, 28], but there are many candidate materials [2, 17, 20–22 , 29– 34].”