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This research unveils a universal mechanism to control magnetization at ultrafast timescales in magnetic multi-layers and demonstrates a novel optical technique to track the transfers of spins between such layers.

Badreddine Assouar, Directeur de Recherche CNRS au sein du l’Institut Jean Lamour, a été élu Fellow de l’American Physical Society (APS), l’une des distinctions les plus prestigieuses de la communauté internationale des physiciens.

Cette étude démontre qu’il est possible de contrôler finement la chimie de surface des nanodiamants grâce à une approche entièrement en phase gazeuse. Contrairement aux méthodes classiques centrées sur la simple purification, cette stratégie permet d’ajuster simultanément pureté, fonctionnalisation et stabilité du matériau. Elle ouvre ainsi la voie à la conception de nanodiamants aux propriétés sur mesure pour des applications avancées en énergie, électronique et catalyse.

This paper presents a new method to determine the turbulent transport coefficients of an impurity using the gyrokinetic code GYSELA. Applied to lithium, with and without a transport barrier, it provides initial results on this promising species for next-generation plasma-facing components.

À l’occasion de la Semaine de la recherche, l’Institut Jean Lamour a accueilli 80 étudiants pour un après-midi consacré à la découverte de la recherche en physique et en chimie, à travers des visites d’équipements et des échanges avec des chercheurs, des doctorants et des responsables de formation.

This work introduces an AI-based method to quantify phase fractions in steels directly from X-ray diffraction data in real time. It overcomes the limitations of traditional time-consuming analysis methods and enables fast, high-throughput experiments with real-time feedback.

This article presents the first study of the correlation between plasma dynamics and the electrical signature of an arc across different frequency ranges, based on a time-resolved three-dimensional reconstruction.

The capture and storage of CO₂ using porous materials is one of the strategies being explored to combat climate change. However, humidity—present everywhere—tends to adsorb preferentially onto most solids, reducing their capacity to capture CO₂.

Ferroelectric Rashba semiconductors such as α-GeTe have recently emerged as promising candidates for all-electrically controlled spin-orbitronics. The persistence of Rashba spin-split electronic states in ultrathin α-GeTe films is of utmost importance in the context of device downscaling. Using spin- and angle-resolved photoemission spectroscopy supported by first-principle calculations, the authors here demonstrate that α-GeTe films as thin as 5 nm still exhibit an in-plane spin texture at the Fermi surface.

The highlights of this article are:
• Bacillus pseudofirmus enabled calcite mineralization on 3 pure cement pastes
• Bacillus pseudofirmus enabled the complete filling of 9 mm3 holes in cement pastes in 21 days
• The bio-induced precipitation of calcite leads to the coating of bacterial cells