| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gambarelli, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2022Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
- 2022Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMncitations
- 2022Impact of GHz and THz transport regimes on spin propagation and conversion in the antiferromagnet IrMncitations
- 2021Impact of GHz and THz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
- 2016Experimental characterization of the post-cracking response in Hybrid Steel/Polypropylene Fiber-Reinforced Concretecitations
- 2014Spin pumping and inverse spin Hall effect in platinum and other 5 d metals: the essential role of spin-memory loss and spin-current discontinuities at interfacescitations
- 2012Crossover from Spin Accumulation into Interface States to Spin Injection in the Germanium Conduction Bandcitations
- 2012Crossover from Spin Accumulation into Interface States to Spin Injection in the Germanium Conduction Bandcitations
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article
Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
Abstract
<jats:p>Control over spin transport in antiferromagnetic systems is essential for future spintronic applications with operational speeds extending to ultrafast time scales. Here, we study the transition from the gigahertz (GHz) to terahertz (THz) regime of spin transport and spin-to-charge current conversion (S2C) in the prototypical antiferromagnet IrMn by employing spin pumping and THz spectroscopy techniques. We reveal a factor of 4 shorter characteristic propagation lengths of the spin current at THz frequencies (∼0.5 nm) as compared to GHz experiments (∼2 nm). This observation may be attributed to different transport regimes. The conclusion is supported by extraction of sub-picosecond temporal dynamics of the THz spin current. We identify no relevant impact of the magnetic order parameter on S2C signals and no scalable magnonic transport in THz experiments. A significant role of the S2C originating from interfaces between IrMn and magnetic or non-magnetic metals is observed, which is much more pronounced in the THz regime and opens the door for optimization of the spin control at ultrafast time scales.</jats:p>