Spin-orbit torques (SOTs) have the potential to manipulate magnetization using in-plane current, and two-dimensional electron gases (2DEGs) provide a highly efficient spin-to-charge current interconversion. This paper reports the non-volatile electric-field control of SOTs in an oxide-based Rashba-Edelstein 2DEG.   We recently reported a significant progress in the path towards a next generation of memory devices […]

Albert Fert, Mairbek Chshiev, André Thiaville and Hongxin Yang, J. Phys. Soc. Jpn. 92, 081001 (2023).   In this Review article, the authors briefly introduce the research history of DMI and its significance in the field of modern spintronics. Since the early 1960’s, the discovery of Dzyaloshinskii–Moriya interaction (DMI) helped to explain the physical mechanisms […]

A new type of magnetic sensor based on the spin transfer torque using 50-100nm diameter perpendicular magnetic tunnel junctions was recently reported in the IEEE Sensors Journal. The paper demonstrates the magnetic field sensing principle, patented by Spintec in 2020, while also describing possible read-out methods and their associated signal conditioning electronics. Improvements over conventional […]

Book – The basics of electron transport in spintronics: textbook with lectures, exercises and solutions V. Baltz, EDP Sciences Here is the ideal book to grasp the basic concepts of spin-dependent electron transport and to develop a deep physical understanding of the subject. A careful selection of key notions provides a concise and effective framework. […]

The Dzyaloshinskii–Moriya interaction (DMI) arising in the magnetic systems with broken inversion symmetry plays an essential role in topological spintronics. Using atomistic spin model simulations of an intriguing type of DMI emerging in the films with composition gradient (g-DMI), it is demonstrated that that both the strength and chirality of g-DMI can be controlled by […]

  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 […]

  In the context of intensive research on treatments against diabetes – major health threat to millions of people, we report here on an innovative approach based on mechanobiology. Basically, chronic hyperglycemia is regulated by a supply of insulin, if insufficiently secreted. We show here that the mechanical stimulation of pancreatic beta cells, via the […]

  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 […]

  We have investigated the use of spintronic devices to enable the implementation of a Binary Ensemble Convolutional Neural Network. A simulation flow has been setup and allowed to evaluate this disruptive combination and very promising results have been obtained in terms of hardware optimization and power reduction. The use of emerging technologies has been […]

  Control over spin transport in antiferromagnetic systems is essential for future spintronic applications with operational speeds extending to ultrafast time scales. A consortium of physicists at SPINTEC, JGU Berlin and Charles University Prague established the essential role of interfaces for spin current injection and spin current-to-charge current conversion, from the gigahertz (GHz) diffusive to […]