| 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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Brandbyge, Mads
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Electron-vacancy scattering in SrNbO3 and SrTiO3
- 2024Electron-vacancy scattering in SrNbO 3 and SrTiO 3 :A density functional theory study with nonequilibrium Green's functions
- 2024Electromigration Forces on Atoms on Graphene Nanoribbons: The Role of Adsorbate-Surface Bonding
- 2023Manipulation of magnetization and spin transport in hydrogenated graphene with THz pulses
- 2023Octahedral distortions in SrNbO3citations
- 2022Unveiling the Multiradical Character of the Biphenylene Network and Its Anisotropic Charge Transportcitations
- 2022Unveiling the multiradical character of the biphenylene network and its anisotropic charge transportcitations
- 2021Surface states and related quantum interference in ab initio electron transportcitations
- 2020QuantumATK: an integrated platform of electronic and atomic-scale modelling tools
- 2020QuantumATK: An integrated platform of electronic and atomic-scale modelling toolscitations
- 2017Grain boundary-induced variability of charge transport in hydrogenated polycrystalline graphenecitations
- 2016Semiconductor band alignment from first principles: a new nonequilibrium Green's function method applied to the CZTSe/CdS interface for photovoltaicscitations
- 2016General atomistic approach for modeling metal-semiconductor interfaces using density functional theory and nonequilibrium Green's functioncitations
- 2010Scattering cross section of metal catalyst atoms in silicon nanowirescitations
- 2009Electronic properties of graphene antidot latticescitations
- 2008Ab initio study of spin-dependent transport in carbon nanotubes with iron and vanadium adatomscitations
- 2007Inelastic transport theory from first principles: Methodology and application to nanoscale devicescitations
Places of action
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article
Manipulation of magnetization and spin transport in hydrogenated graphene with THz pulses
Abstract
Terahertz (THz) field pulses can now be applied in scanning tunneling microscopy (THz-STM) junction experiments to study time-resolved dynamics. The relatively slow pulse compared to the typical electronic time-scale calls for approximations based on a time-scale separation. Here, we contrast three methods based on non-equilibrium Green’s functions: i) the steady-state, adiabatic results, ii) the lowest-order dynamic expansion in the time variation, and iii) the auxiliary mode propagation method without approximations in the time variation. We consider a concrete THz-STM junction setup involving a hydrogen adsorbate on graphene where the localized spin polarization can be manipulated on/off by a local field from the tip electrode and/or a back-gate affecting the in-plane transport. We use steady-state non-equilibrium Green’s function theory combined with density functional theory to obtain a Hubbard model for the study of the junction dynamics. Solving the Hubbard model in a mean-field approximation, we find that the near-adiabatic first-order dynamic expansion in the time variation provides a good description for STM voltage pulses up to the 1 V range.