The broken inversion symmetry of some semiconductors may allow for spin–charge interconversion, but its control by electric fields is volatile. This has led to interest in ferroelectric Rashba semiconductors, which combine semiconductivity, large spin–orbit coupling and non-volatility. Here we report room-temperature, non-volatile ferroelectric control of spin-to-charge conversion in epitaxial germanium telluride films. Spintronics could potentially […]

Neuromorphic computing is a bio-inspired technology which aims at mimicking the brain working principles. It can be used for fast and energy-efficient applications through the implementation of networks of artificial neurons and synapses. Artificial synapses are implemented as electronic components called memristors. These are non-volatile memory devices whose resistance can take several intermediate values between […]

On Tuesday, November 16th at 13:30 Richard Schlitz from Magnetism and Interface Physics, ETH Zürich, Switzerland will give us a seminar entitled: Topological transverse transport effects and non-local magnon spin transport Place : CEA Bat. 10.05 Room 445 (limited to persons having a CEA Badge) skype link : https://webconf.cea.fr/ioan-lucian.prejbeanu/C89D5FFJ if this link does not work […]

You find here the list of proposals for Master-2 internships to take place at Spintec during Spring 2022. In most cases, these internships are intended to be suitable for a longer-term PhD work. Interested Master-1 students are also encouraged to apply, as well as students not phased for a Spring internship, especially those coming from […]

Our colleague Jean-Philippe Attané, Associate Professor at the University Grenoble Alpes, was appointed Senior Member of the Institut Universitaire de France (IUF), beginning from October 1, 2021 for a period of five years. The IUF distinguishes every year a small number of university professors for their research excellence and international recognition, providing theses members additional […]

We report very large spin transfer torque driven domain wall velocities, approaching 3000 m/s, in rare-earth free ferrimagnetic Mn4-xNixN thin films close to the angular momentum compensation point. We also observe a reversal of the domain wall motion direction after the angular momentum compensation point. The interest towards ferrimagnets has recently grown because of their […]

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 quantify a sizable orientation dependence of the spin absorption in Co, CoFe, and NiFe. These experiments allow us to determine […]

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 of NiCu alloys across their Curie temperatures using spin-pumping experiments. We show that the inverse Spin Hall Effect in these […]

CONTRABASS stands for Ferroelectric control of Rashba states, a 42 months ANR project starting in December 2020. Spintronics devices involve ferromagnetic elements with high switching energies. Contrastingly, the polarization of ferroelectrics can be easily switched by an electric field, at energies typically 1000 times lower. Combined with high spin-orbit coupling elements, ferroelectrics have also a […]

Spintec is part of a European-funded ITN project called SPEAR: Spin-orbit materials, emergent phenomena and related technology training. The project, coordinated by CIC nanoGUNE, seeks to explore new materials for the next generation of computer memories and processors. six European academic institutions (CEA-France, ETH Zürich-Switzerland, IMEC-Belgium, U. Hamburg-Germany, Martin Luther University Halle–Germany, CIC Nanogune) and […]