Anomalous Spin and Orbital Hall Phenomena in Antiferromagnetic Systems
arXiv:2404.18712 · doi:10.1103/PhysRevLett.134.026702
Abstract
We investigate anomalous spin and orbital Hall phenomena in antiferromagnetic (AF) materials via orbital pumping experiments. Conducting spin and orbital pumping experiments on YIG/Pt/Ir20Mn80 heterostructures, we unexpectedly observe strong spin and orbital anomalous signals in an out-of-plane configuration. We report a sevenfold increase in the signal of the anomalous inverse orbital Hall effect (AIOHE) compared to conventional effects. Our study suggests expanding the Orbital Hall angle (θ_OH) to a rank 3 tensor, akin to the Spin Hall angle (θ_SH), to explain AIOHE. This work pioneers converting spin-orbital currents into charge current, advancing the spin-orbitronics domain in AF materials.
5 pages and 4 figures
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Cited by in corpus (7)
- Orbitronics in Two-dimensional Materials
- Probing orbital currents through inverse orbital Hall and Rashba effects
- Coexistent multifractal mesoscopic fluctuations in Integer Quantum Hall Transition and in Orbital Hall Transition
- Anisotropy-Driven Anomalous Inverse Orbital Hall Effect in Fe Films
- Orbital Hall effect from orbital magnetic moments of Bloch states: the role of a new correction term
- Disambiguating electrical detection of magnetization dynamics in magnetic insulators
- Investigating spin and orbital effects via spin-torque ferromagnetic resonance