Research team Theory/Simulation, within the Concepts group
Seminar – Coupled magnetic and molecular dynamics: Methodology and application to the simulation of magneto-elastic effects in iron (March 01st, 2023)
On Thursday, March 16 2023, we have the pleasure to welcome in SPINTEC Julien Tranchida, Research Scientist at CEA Cadarache. He will give us a seminar at 14:00, entitled: Coupled magnetic and molecular dynamics: Methodology and application to the simulation of magneto-elastic effects in iron Place: SPINTEC Seminar, CEA Building 10.05 auditorium 445 (access needs […]
Read moreMicromagnetics of chemical modulations in cylindrical nanowires (February 09th, 2023)
We combined chemical synthesis, magnetic microscopy and micromagnetic simulations to provide a comprehensive view of the micromagnetics of chemical modulations in cylindrical nanowires. This sets the ground for their use to investigate the specific aspects of domain-wall dynamics and spin waves in a curvilinear system. Curvilinear and three-dimensional magnetism are a fast-developing field, considering […]
Read moreWaking-up wireless sensor nodes with perpendicular magnetic tunnel junctions (December 19th, 2022)
Spin-torque-nanodiodes based on magnetic tunnel junctions are promising candidates for RF energy harvesters and ultra-low power wake-up receivers with performances that are expected to surpass those of semiconductor diodes. Experiments on magnetic tunnel junctions with perpendicular magnetic anisotropy show how the performances can be optimized upon reducing the magnetic layer thickness and the device […]
Read moreComputing and storing data at the nanoscale using magnetic skyrmions (December 08th, 2022)
Magnetic skyrmions are appealing for use in logic and memory devices combining small size and fast motion. Here, we propose to exploit skyrmion interactions to perform both logic and memory operations at the nanoscale. Our concept opens a path for novel devices which intrinsically merge high-density non-volatile data storage with computing capabilities. a. Schematic representation […]
Read moreControlling skyrmion chirality with a gate voltage (December 01st, 2022)
Magnetic skyrmions are localized chiral spin textures, which offer great promise to store and process information at the nanoscale. The unique sense of rotation of their surrounding domain wall, called chirality, is resulting from the so-called Dzyaloshinskii−Moriya Interaction. C.E. Fillion et al. have managed the inversion of the skyrmion chirality by applying a gate voltage, […]
Read moreObservation of skyrmions in synthetic antiferromagnetic and their nucleation using current and light (November 28th, 2022)
Skyrmions in synthetic antiferromagnets are appealing for use in future memory and computing devices, combining small size and fast motion, but creating, stabilizing, and observing them remains a challenge. Here, we demonstrate the stabilization and current and light induced nucleation of skyrmions in a synthetic antiferromagnet, observing the magnetization texture in each layer using X-ray […]
Read moreMasters thesis projects for Spring 2023 (September 21st, 2022)
You find here the list of proposals for Master-2 internships to take place at Spintec during Spring 2023. In most cases, these internships are intended to be suitable for a longer-term PhD work. Interested Master-1 students are also encouraged to apply, as well as students not phased for a Spring internship, especially those coming from […]
Read moreUnveiling temperature dependence mechanisms of perpendicular magnetic anisotropy at Fe/MgO interfaces (August 30th, 2022)
A recent breakthrough in understanding the thermal effects on the magnetic properties of perpendicularly magnetized Fe/MgO interfaces is reported. It turns out that the macroscopic mechanisms play a decisive role in determining the thermal stability of magnetization in such structures. The perpendicular magnetic anisotropy (PMA) at magnetic transition metal/oxide interfaces(TM/Ox) is a key element in […]
Read moreReview – Two-dimensional materials prospects for non-volatile spintronic memories (August 17th, 2022)
H. Yang✉, S. O. Valenzuela✉, M. Chshiev, S. Couet, B. Dieny, B. Dlubak, A. Fert, K. Garello, M. Jamet, D.-E. Jeong, K. Lee, T. Lee, M.-B. Martin, G. S. Kar, P. Sénéor, H.-J. Shin, S. Roche✉, Nature 606, 663 (2022). In this Perspective article, an overview of the current developments and challenges in regard […]
Read moreOne year post-doctoral fellowship on domain walls and spin waves in core-shell magnetic nanowires (August 05th, 2022)
Context. Spintronics has become a mature technology for applications, such as magnetic field sensing and solid-state memories. However, existing concepts are almost exclusively based on planar processes such as thin film deposition and patterning. Extending spintronics to 3D devices would provide new integrated functionalities such as three-dimensional magnetic field sensors, and also open prospects for […]
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