Scientific highlights illustrated by key publications
- Observation of Large Unidirectional Rashba Magnetoresistance in Ge(111) (March 10th, 2020)
Relating magnetotransport properties to specific spin textures at surfaces or interfaces is an intense field of research nowadays. Here, we investigate the variation of the electrical resistance of Ge(111) under the application of an external ... - Experimental evidence of the valley Nernst effect in WSe2 (March 06th, 2020)
The Hall effect can be extended by inducing a temperature gradient in lieu of electric field that is known as the Nernst effect. After the discovery of the spin Nernst effect, the collection would not ... - Multiferroic Proximity Effect in Graphene (March 03rd, 2020)
A possibility of controlling electronic and magnetic properties of graphene via proximity of multiferroic substrate is demonstrated. Coupling graphene to a multiferroic oxide (bismuth ferrite) give rise to novel class of spin-dependent transport phenomena based ... - Self-induced spin-charge conversion in ferromagnetic thin films (February 28th, 2020)
The generation of a spin current and its further conversion to a charge current have attracted considerable attention, facilitating advances in basic physics along with the emergence of closely related applications in the field of ... - Large Current-Driven Domain Wall Mobility by pure spin transfer torque in Ferrimagnetic Mn4N Thin Films (December 11th, 2019)
We found that Mn4N, a rare-earth free ferrimagnet made of abundant elements, is an exciting candidate for the development of sustainable spintronics devices. This material possess exciting properties, and in particular domain walls can be ... - Topology and Œrsted field prevent Walker breakdown in cylindrical nanowires (December 06th, 2019)
Domain-wall motion in one-dimensional conduits is both a textbook case for magnetization dynamics and the understanding of spin torques, and of practical importance for the design of novel spintronic ICT devices. However, instabilities known as ... - Spintronic memristor based on an isotropically coercive magnetic layer (December 03rd, 2019)
We propose an original concept of spintronic memristor based on the angular variation of the tunnel magnetoresistance (TMR) of a nanopillar comprising several magnetic layers. We have experimentally developed the appropriate magnetic free layer and ... - Review – Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (September 30th, 2019)
A. Manchon, J. Železný, I. M. Miron, T. Jungwirth, J. Sinova, A. Thiaville, K. Garello, and P. Gambardella. Rev. Mod. Phys. 91, 035004 (2019) Spin-orbit coupling in inversion-asymmetric magnetic crystals and structures has emerged as a powerful ... - High-density SOT-MRAM memory array based on a single transistor (September 18th, 2019)
Spin Orbit Torque Magnetic RAM (SOT-MRAM) approach represents a new way to overcome Spin Transfer Torque (STT) memory limitations by separating the reading and the writing paths. It is particularly interesting for high-speed applications that do ... - Mapping spin-charge conversion in a topological oxide 2DEG (September 16th, 2019)
Spin-charge conversion phenomena harnessing the spin orbit coupling are promising for the future of spintronics, allowing in one way (charge–to-spin) the generation of torque on magnetic elements and in the other way (spin-to-charge) the detection ... - Impact of eddy currents in nanostructures destined for use in spintronics (September 11th, 2019)
In the field of spintronics, ferromagnetic/non-magnetic metallic multilayers are core building blocks for emerging technologies. Resonance experiments using stripline transducers are commonly used to characterize and engineer these stacks for applications. Here, we investigated the incompletely understood ... - 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 ...
