Scientific highlights illustrated by key publications
- Light-Weight Cipher Based on Hybrid CMOS/STT-MRAM: Power/Area Analysis (September 04th, 2019)
Internet of Things (IoT) applications deployment relies on low-power and security constraints. In this perspective, lightweight cryptography has been developed. This field enables, with a reduced area and power consumption, to encrypt sensitive data processed in ... - Magnetic control of optical responses of biocompatible magneto-elastic membranes (August 29th, 2019)
Numerous studies investigated the use of synthetic membranes for photonic or biomedical applications. We report here on a recent type of biocompatible magnetically actuated membranes, partly originating from studies on magnetic particles for biology, consisting ... - Modeling magnetic-field-induced domain wall propagation in modulated-diameter cylindrical nanowires (August 27th, 2019)
Domain wall propagation in modulated-diameter cylindrical nanowires is a key phenomenon to be studied with a view to designing three-dimensional magnetic memory devices. In this framework, we quantified theoretically the driving force needed for ... - Physicochemical origin of improved MRAM cells with W capping layer (August 20th, 2019)
Increasing the thermal budget beyond 400°C of magnetic random access memory (MRAM) cells is a major goal to allow for seamless conventional electronics integration. At these temperatures significant material diffusion can destroy the interface properties ... - A generic probe for spin fluctuations in nanometer-scale films (February 20th, 2019)
In the field of spintronics, which relies on the spin-dependent transport properties of matter, exploring spin fluctuations and phase transitions in ultrathin films is essential as it provides key information to engineer materials for applications. ... - Impact of heating on the stability phase diagrams of perpendicular MTJs (February 19th, 2019)
Measured switching diagrams of perpendicular magnetic tunnel junctions exhibit unexpected behavior at high voltages associated with significant heating of the storage layer. The boundaries deviate from the critical lines corresponding to the coercive field, which ... - A Route towards Dynamic Control of Skyrmion Chirality (February 11th, 2019)
The very popular magnetic bubbles called skyrmions are promising for dense data storage, logic and neuromorphic applications thanks to the unique sense of rotation (chirality) of their surrounding domain wall. The so-called Dzyaloshinskii−Moriya Interaction (DMI) is ... - Electroless plating to produce flux-closure nanotube for three-dimensional spintronics building blocks (December 18th, 2018)
The conceptual proposal for a so-called race-track three-dimensional data storage device based on domain walls in a dense array of vertical wires, revived the attention on cylindrical magnetic nanostructures. While mostly nanowires have been considered ... - Creation of Magnetic Skyrmion Bubble Lattices by Ultrafast Laser in Ultrathin Films (December 18th, 2018)
Magnetic skyrmions are topologically nontrivial magnetic domains where the magnetization rotates in a fixed sense (chirality). They are usually created by magnetic fields or by non-homogeneous electric currents. Here S.G. Je et al. have shown ... - Spin Hall and Spin Swapping Torques in Diffusive Ferromagnets (December 18th, 2018)
A complete set of the generalized drift-diffusion equations for a coupled charge and spin dynamics in ferromagnets in the presence of extrinsic spin-orbit coupling is derived from the quantum kinetic approach, covering major transport phenomena, ... - Significant Dzyaloshinskii–Moriya interaction at graphene/ferromagnet interfaces due to the Rashba effect (December 18th, 2018)
Despite being a weak spin–orbit coupling material, graphene demonstrated to induce significant Dzyaloshinskii–Moriya interaction due to the Rashba effect leading to formation of chiral spin textures in adjacent ferromagnet (FM) at graphene/FM interfaces. First-principles calculations and ... - Spintec annual booklets (November 18th, 2018)
We gather annually a synopsis of key Spintec selected publications and news in a booklet. You may download them on this page. - Efficient microwave amplification by heat modulation at GHz frequency in spintronics oscillators (November 13th, 2018)
Due to the nanometer size of magnetic tunnel junctions and high interfacial resistance of ultrathin MgO tunnel barriers, temperature modulation at GHz frequency can be achieved in these devices and efficiently use to amplify microwaves ... - Impact of intergrain effective coupling due to huge thermal gradients in heat assisted magnetic recording (November 12th, 2018)
Heat assisted magnetic recording (HAMR) is a new hard disk drive (HDD) recording technology which uses a temporary near field heating of the media during write to increase hard disk drive storage density. It has ... - Significant Dzyaloshinskii–Moriya interaction at graphene-ferromagnet interfaces due to the Rashba effect (October 17th, 2018)
Despite being a weak spin–orbit coupling material, graphene demonstrated to induce significant Dzyaloshinskii–Moriya interaction due to the Rashba effect leading to formation of chiral spin textures in adjacent ferromagnet (FM) at graphene/FM interfaces. First-principles calculations ...
