| 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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Droghetti, Andrea
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Current-induced spin polarization in chiral tellurium: a first-principles quantum transport studycitations
- 2024Ab initio transport theory for the intrinsic spin Hall effect applied to 5d metalscitations
- 2023Current-induced spin polarization at metallic surfaces from first principlescitations
- 2023Enhancing electron correlation at a 3D ferromagnetic surfacecitations
- 2023Theoretical perspective on the modification of the magnetocrystalline anisotropy at molecule-cobalt interfacescitations
- 2022Combined spin filtering actions in hybrid magnetic junctions based on organic chains covalently attached to graphenecitations
- 2022Enhancing electron correlation at a 3d ferromagnetic surfacecitations
- 2017Quantum transport simulation scheme including strong correlations and its application to organic radicals adsorbed on goldcitations
- 2013Ground state of a spin-crossover molecule calculated by diffusion Monte Carlocitations
- 2013Spin-dependent electronic structure of the Co/Al(OP)3 interfacecitations
- 2013Spin-dependent electronic structure of the Co/Al(OP)3 interfacecitations
- 2009MgN: a new promising material for spintronic applicationscitations
Places of action
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article
Enhancing electron correlation at a 3d ferromagnetic surface
Abstract
Spin-resolved momentum microscopy and theoretical calculations are combined beyond the one-electron approximation to unveil the spin-dependent electronic structure of the interface formed between iron (Fe) and an ordered oxygen (O) atomic layer, and an adsorbate-induced enhancement of electronic correlations is found. It is demonstrated that this enhancement is responsible for a drastic narrowing of the Fe d-bands close to the Fermi energy (EF) and a reduction of the exchange splitting, which is not accounted for in the Stoner picture of ferromagnetism. In addition, correlation leads to a significant spin-dependent broadening of the electronic bands at higher binding energies and their merging with satellite features, which are manifestations of a pure many-electron behavior. Overall, adatom adsorption can be used to vary the material parameters of transition metal surfaces to access different intermediate electronic correlated regimes, which will otherwise not be accessible. The results show that the concepts developed to understand the physics and chemistry of adsorbate–metal interfaces, relevant for a variety of research areas, from spintronics to catalysis, need to be reconsidered with many-particle effects being of utmost importance. These may affect chemisorption energy, spin transport, magnetic order, and even play a key role in the emergence of ferromagnetism at interfaces between non-magnetic systems.