Detection of the Orbital Hall Effect by the Orbital-Spin Conversion

Abstract

The intrinsic orbital Hall effect (OHE), the orbital counterpart of the spin Hall effect, was predicted and studied theoretically for more than one decade, yet to be observed in experiments. Here we propose a strategy to convert the orbital current in OHE to the spin current via the spin-orbit coupling from the contact. Furthermore, we find that OHE can induce large nonreciprocal magnetoresistance when employing magnetic contact. Both the generated spin current and the orbital Hall magnetoresistance can be applied to probe the OHE in experiments and design orbitronic devices.

Supplementary Materials attached

References in corpus (5)

• Study of Intrinsic Spin Hall Effect and Orbital Hall Effect in 4d- and 5d- Transition Metals
• Giant Orbital Hall Effect in Transition Metals: Origin of Large Spin and Anomalous Hall Effects
• Giant Intrinsic Spin and Orbital Hall Effects in Sr2MO4 (M=Ru,Rh,Mo)
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Cited by in corpus (5)

• Observation of the orbital Hall effect in a light metal Ti
• Structural Chirality and Electronic Chirality in Quantum Materials
• Giant orbital Hall effect due to the bulk states of 3D topological insulators
• Nonlinear orbital response across topological phase transition in centrosymmetric materials
• Orbital Hall effect in spin-3/2 hole-doped semiconductors and its implications for orbitronics