Scientific highlights illustrated by key publications
- Synthesis of epitaxial monolayer Janus SPtSe (April 22nd, 2021)
Two-dimensional materials like graphene or transition metal dichalcogenides (TMDs) have attracted a lot of attention during the last decade for their original electronic properties intimately related to their 2D character and symmetries. At Spintec, the ... - Theoretical study of current induced domain wall motion in magnetic nanotubes with azimuthal magnetization (April 12th, 2021)
We report a theoretical overview of the magnetic domain wall behavior under an electric current in infinitely long nanotubes with azimuthal magnetization. We highlight effects that, besides spin-transfer torques already largely understood in flat strips, ... - Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves (March 04th, 2021)
The spin absorption process in a ferromagnetic material depends on the spin orientation relatively to the magnetization. Using a ferromagnet to absorb the pure spin current created within a lateral spin valve, we evidence and ... - Independence of the Inverse Spin Hall Effect with the Magnetic Phase in Thin NiCu Films (February 25th, 2021)
Large spin Hall angles have been observed in 3d ferromagnetic materials, but their origin, and especially their link with the ferromagnetic order, remain unclear. Here, we investigated the evolution of the inverse spin Hall Effect ... - Review – Spin insulatronics (February 15th, 2021)
Arne Brataasa, Bart van Wees, Olivier Klein, Grégoire de Loubens, Michel Viret, Physics Reports 885, 1-27 (2020) Spin insulatronics covers efforts to generate, detect, control, and utilize high-fidelity pure spin currents and excitations inside magnetic insulators. ... - Controlling magnetism with voltage is shown to be more efficient using nitrogen magneto-ionics (February 12th, 2021)
Voltage-driven ionic transport in magnetic materials has traditionally relied on controlled migration of oxygen ions. In this work, led by researchers at UAB (Barcelona) in collaboration with colleagues at Georgetown Univ. (D.C.), IMN-CNM-CSIC (Madrid), Spintec ... - Spin-information transported over long-distances at room temperature in the ultra-low damping hematite antiferromagnet (February 09th, 2021)
A consortium led by physicists at JGU Mainz, in collaboration with CNRS/Thales Palaiseau, SPINTEC and LNCMI Grenoble, and NTNU Trondheim, demonstrated that transporting spin-information at room temperature and over long distances is within reach. They ... - Pushing the limits of fast swept-tuned spectrum analysis using Spin-Torque Nano-Oscillators (November 16th, 2020)
Recent progress in nanotechnology has led to the development of spin-torque nano-oscillators (STNO), whose time constants, due to their nano-scale size, are naturally of the order of 1-100 nanoseconds. At SPINTEC we demonstrated experimentally for ... - Unveiling the heart of magnetic memory cells thanks to electron holography (November 10th, 2020)
Magnetic spintronic memory called STT-MRAM have recently entered in volume production at major microelectronic foundries. The research in this area is now focused on preparing the future memory generations with higher capacity, higher speed, lower ... - Optical access of magnetic tunnel junctions for future hybrid spintronic–photonic memory circuits (August 24th, 2020)
We demonstrate in this study a fabrication process that enables the realization of a top transparent conductive electrode of magnetic tunnel junctions (MTJs), building blocks of magnetic random access memories (MRAMs). This work opens up ... - Review — Opportunities and challenges for spintronics in the microelectronics industry (August 19th, 2020)
The European consortium SpintronicFactory, largely supported by the French laboratories Spintec (Grenoble) and the CNRS-Thales Joint Lab (Palaiseau), publishes in the journal Nature Electronics an ambitious roadmap for spintronics. This discipline on the borderline between ... - Very large Dzyaloshinskii-Moriya interaction and skyrmions in 2D Janus dichalcogenides (August 13th, 2020)
The intense recent research on skyrmions has focused on multilayers of classical magnetic materials (Co, CoFeB, Fe…). In this work, the authors explore skyrmions in van der Waals bi-dimensional magnets, a new type of magnetic ... - Spin Transfer Torque Magnetic Tunnel Junction for Single Event Effects mitigation in IC Design (July 23rd, 2020)
Due to its good radiation effects tolerance and its inherent non volatility, Spin-Transfer Torque Magnetic Tunnel Junction (STT-MTJ) is considered as a promising candidate for high-reliability electronics. A radiation tolerant circuit design suitable for space ... - Room-Temperature Skyrmions at Zero Field in Exchange-Biased Ultrathin Films (July 17th, 2020)
Magnetic skyrmions are topologically protected spin textures of great interest for nanoscale information storage and processing. However, stabilizing small skyrmions without applying an external magnetic field remains challenging. This study employs a thin ferromagnetic layer ... - Metamagnetism of Weakly Coupled Antiferromagnetic Topological Insulators (July 06th, 2020)
Layered magnetic topological insulators are candidate to unveil novel electronic phases controlled by the magnetization. In MnBi4Te7, we evidenced a transition from an antiferromagnetic to a ferromagnetic-like metamagnetic state, possibly realizing the quantum anomalous Hall ...
