Perpendicular-shape-anisotropy magnetic random-access memory (PSA MRAM) has been proposed to maintain the thermal stability of solid-state magnetic bits down to a few nanometers in diameter. Here we confirm directly with high-spatial resolution and high-sensitivity electron holography that magnetization is weakly affected by temperature, in contrast with the conventional ultrathin MRAM cells. Magnetic random-access memory (MRAM) […]

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 […]

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 […]

Viola Krizakova, Manu Perumkunnil, Sebastien Couet, Pietro Gambardella, Kevin Garello, J. Magn. Magn. Mater. (2022). In this Review, the phenomenon of spin-orbit torques (SOT) is reviewed, from the fundamentals to prospects for applications. Spin-orbit torques (SOT) provide a versatile tool to manipulate the magnetization of diverse classes of materials and devices using electric currents, leading […]

Q. H. Wang✉, A. Bedoya-Pinto, M. Blei, A. H. Dismukes, A. Hamo, S. Jenkins, M. Koperski, Y. Liu, Q.-Ch. Sun, E. J. Telford, H. H. Kim, M. Augustin, U. Vool, J.-X. Yin, L. H. Li, A. Falin, C. R. Dean, F. Casanova, R. F. L. Evans, M. Chshiev, A. Mishchenko, C. Petrovic, R. He, L. […]

F. Trier, P. Noël, J.-V. Kim, J.-Ph. Attané, L. Vila & M. Bibes✉, Nature Reviews Materials 7, 258 (2022).   In this Review, the recent advances in the new field of oxide spin-orbitronics including the control of spin–orbit-driven effects by ferroelectricity are surveyed, and the future perspectives for the field are discussed. Oxide materials possess […]

Van der Waals (vdW) layered magnets are promising materials to develop ultracompact and multifunctional spintronics devices. However, most of them are magnetic only at low temperature and are almost exclusively studied in the form of small flakes obtained by mechanical exfoliation. Here, we demonstrate the direct growth by molecular beam epitaxy of Fe5GeTe2, a room […]

Magnetic Random Access Memory recently started to be commercialized by all main microelectronics factories. In MRAM, the information is coded via parallel or antiparallel magnetic configurations to represent ones and zeroes. The technology is intrinsically nonvolatile, meaning it can keep information without being electrically powered. However, nonvolatility often comes with a trade-off between the information […]

We present a new type of biocompatible surface-functionalized magnetic microparticles for cancer cells destruction. The magnetite particles, covered with polyethylene glycol molecules, are shown to favor cell-death via apoptosis when set into vibrations by alternating magnetic field.   A team from SPINTEC, in collaboration with researchers from SyMMES, has recently developed a new type of […]

Les Échos publie la tribune de Victoire de Margerie, fondatrice et vice-présidente du World Materials Forum, portant sur la spintronique et la nécessité d’industrialiser cette technologie de rupture pour gérer l’accroissement de données en limitant les dommages sur la planète. Technologie basée sur la rotation d’une particule sans consommation d’énergie, la spintronique pourrait “remplacer les […]