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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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Ferrari, E.
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Publications (9/9 displayed)
- 2023Interlayer Sliding Phonon Drives Phase Transition in the Ph-BTBT-10 Organic Semiconductorcitations
- 2023Influence of Different Filler Metals on the Mechanical and Microstructural Characteristics of Arc-Welded Joints Made of Dissimilar Titanium Alloys
- 2021Tetramethylbenzidine-TetrafluoroTCNQ (TMB-TCNQF4): A Narrow-Gap Semiconducting Salt with Room-Temperature Relaxor Ferroelectric Behaviorcitations
- 2020From solid state to in vitro anticancer activity of copper(ii) compounds with electronically-modulated NNO Schiff base ligandscitations
- 2015Multi-Walled carbon nanotubes modified electrodes for the electroanalytical detection of highly hazardous water contaminants
- 2015A combined synchrotron radiation micro computed tomography and micro X-ray diffraction study on deleterious alkali-silica reactioncitations
- 2014Magnetization and Microstructure Dynamics in Fe/MnAs/GaAs(001): Fe Magnetization Reversal by a Femtosecond Laser Pulsecitations
- 2012Novel smart bio-nanomaterials: bioactive glasses containing metal nano-particles conjugated with molecules of biological interest
- 2011Biological performance of a novel biodegradable polyamidoamine hydrogel as a guide for peripheral nerve regeneration
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article
Magnetization and Microstructure Dynamics in Fe/MnAs/GaAs(001): Fe Magnetization Reversal by a Femtosecond Laser Pulse
Abstract
Thin film magnetization reversal without applying external fields is an attractive perspective for applications in sensors and devices. One way to accomplish it is by fine-tuning the microstructure of a magnetic substrate via temperature control, as in the case of a thin Fe layer deposited on a MnAs/GaAs(001) template. This work reports a time-resolved resonant scattering study exploring the magnetic and structural properties of the Fe/MnAs system, using a 100 fs optical laser pulse to trigger local temperature variations and a 100 fs x-ray free-electron laser pulse to probe the induced magnetic and structural dynamics. The experiment provides direct evidence that a single optical laser pulse can reverse the Fe magnetization locally. It reveals that the time scale of the magnetization reversal is slower than that of the MnAs structural transformations triggered by the optical pulse, which take place after a few picoseconds already.