ArticleNature communications2023
Ultrafast THz probing of nonlocal orbital current in transverse multilayer metallic heterostructures.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- All-optical hybrid metasurfaces for ultrafast computational spectrometer and single-pixel imaging.Nature communications · 2025Article
- Article
- Spin-orbit interaction driven terahertz nonlinear dynamics in transition metals.Npj spintronics · 2025Article
- Active ballistic orbital transport in Ni/Pt heterostructure.Nature communications · 2024Article
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Authors and funding
2 authors.
Funding
Abstract
THz generation from femtosecond photoexcited spintronic heterostructures has become a versatile tool for investigating ultrafast spin-transport and transient charge-current in a non-contact and non-invasive manner. The equivalent effect from the orbital degree of freedom is still in the primitive stage. Here, we experimentally demonstrate orbital-to-charge current conversion in metallic heterostructures, consisting of a ferromagnetic layer adjacent to either a light or a heavy metal layer, through detection of the emitted THz pulses. Our temperature-dependent experiments help to disentangle the orbital and spin components that are manifested in the respective Hall-conductivities, contributing to THz emission. NiFe/Nb shows the strongest inverse orbital Hall effect with an experimentally extracted value of effective intrinsic Hall-conductivity, [Formula: see text], while CoFeB/Pt shows maximum contribution from the inverse spin Hall effect. In addition, we observe a nearly ten-fold enhancement in the THz emission due to pronounced orbital-transport in W-insertion heavy metal layer in CoFeB/W/Ta heterostructure as compared to CoFeB/Ta bilayer counterpart.
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Registered trials
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