A5071061516- Magnetic properties of thin films
- Magneto-Optical Properties and Applications
- Phase-change materials and chalcogenides
- Magnetic Properties and Applications
- Characterization and Applications of Magnetic Nanoparticles
- Theoretical and Computational Physics
- Analytical chemistry methods development
- ZnO doping and properties
- Physics of Superconductivity and Magnetism
- Shape Memory Alloy Transformations
- Civil and Geotechnical Engineering Research
- Biosensors and Analytical Detection
- Microfluidic and Capillary Electrophoresis Applications
- Quantum and electron transport phenomena
Centre National de la Recherche Scientifique
2019-2024
Institut polytechnique de Grenoble
2019-2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2019-2024
CEA Grenoble
2019-2024
Spintronique et Technologie des Composants
2019-2024
Université Grenoble Alpes
2019-2024
Universidad Complutense de Madrid
2022-2024
Madrid Institute for Advanced Studies
2020-2024
IMDEA Nanoscience
2024
Institut Néel
2022
Ever since the first observation of all-optical switching magnetization in ferrimagnetic alloy GdFeCo using femtosecond laser pulses, there has been significant interest exploiting this process for data-recording applications. In particular, ultrafast speed magnetic reversal can enable writing speeds associated with memory devices to be potentially pushed towards THz frequencies. This work reports development perpendicular tunnel junctions incorporating a stack Tb/Co nanolayers whose...
This work reports the development of perpendicular magnetic tunnel junctions, based on a multilayered stack [Tb/Co] nanolayers, in which magnetization can be reliably toggled using single optical pulse. The helicity-independent single-shot switching Tb/Co was achieved either 60 fs-long or 5 ps laser pulses with incident fluences down to 4.7 mJ/cm2. for Co-rich composition window multilayer corresponding layer thickness ratios tCo/tTb between 1.3-1.5. confirmed alone as well coupled aCoFeB...
Electrodeposited nanowires are an excellent scenario to study and control magnetic domain wall motion in nanostructures. In particular, the introduction of local changes composition during growth procedure has been proven be very efficient for controlling magnetization dynamics. this work, we show possibility introducing compositional gradients FeNi electrodeposited by gradually changing Fe/Ni ratio along their axis. These produce asymmetrical landscape which is reflected processes under...
In this work, we report a simple and effective approach for preparing molecular imprint polymer (MIP) coatings directly on magnetic multicore (MMC) iron oxide nanoparticles using microwave reactor to trigger the polymerization reaction. The were manufactured reactor, MIPs synthesized with rhodamine 6G (R6G) as template molecule, methacrylic acid functional monomer, ethylene glycol dimethacrylate cross-linker. produced MMCs MMC-MIPs extensively characterized by analysis of powder X-ray...
Abstract Since the first experimental observation of all-optical switching phenomena, intensive research has been focused on finding suitable magnetic systems that can be integrated as storage elements within spintronic devices and whose magnetization controlled through ultra-short single laser pulses. We report here atomistic spin simulations in multilayered structures alternating n monolayers Tb m Co. By using a two temperature model, we numerically calculate thermal variation each...
We analyze the micromagnetics of short longitudinal modulations a high-magnetization material in cylindrical nanowires made soft-magnetic lower magnetization such as permalloy, combining magnetic microscopy, analytical modeling, and micromagnetic simulations. The mismatch induces curling around axis modulations, an attempt to screen interfacial charges. angle increases with modulation length, until plateau is reached nearly full charge screening for specific length...
The all-optical magnetization reversal of magnetic layers, by picosecond optical pulses, is particular interest as it shows the potential for energy-efficient and fast tunnel junction (MTJ) elements.This approach requires memory elements that are optically electronically accessible, writing electronic read-out In this paper, we propose integration indium tin oxide (ITO) a transparent conducting electrode junctions in integrated spintronic -photonic circuits.To provide light with sufficient...
Since the first experimental observation of all-optical switching phenomena, intensive research has been focused on finding suitable magnetic systems that can be integrated as storage elements within spintronic devices and whose magnetization controlled through ultra-short single laser pulses. We report here atomistic spin simulations in multilayered structures alternating n monolayers Tb m Co. By using a two temperature model, we numerically calculate thermal variation each sublattice well...