Publication in Nature Material thanks to the strong Tohoku-Lorraine collaboration !

Our paper untitled “ Sub-picosecond Magnetization Reversal in Rare-earth-free Spin Valves  “ has been published on Thursday March 8th in Nature Material. https://www.nature.com/articles/s41563-023-01499-z In this work, we demonstrated sub-picosecond optical control of magnetization in rare-earth-free archetypical spintronic structures, consisting of [Pt/Co]/Cu/[Co/Pt], at ultrafast timescales (see figure). Furthermore, we observed magnetization Read more…

Freshly published in Advanced Materials: A new molecular spintronics engine !

Resulting from a collaboration between 5 laboratories, the published research work highlights a spintronic quantum engine based on a chain of spin qubits formed by the paramagnetic Co center of phthalocyanine (Pc) molecules which interact electronically with Fe/C60 interfaces selecting the electronic spin. The implementation of this quantum engine is Read more…

Mainz-Lorraine Collaboration: New paper in Advanced Functional Materials!

Direct imaging of chiral domain walls and Néel-type skyrmionium in ferrimagnetic alloys. Boris Seng is involved in a PhD dual degree program with Mainz University and Lorraine University. Thanks to Boris’s work, the publication in Advanced Functional Materials demonstrates the evolution of chiral spin states in ferrimagnetic Ta/Ir/Fe/GdFeCo/ Pt multilayers Read more…

Tohoku-Lorraine Collaboration : Review paper on Spin-Transport Mediated Single-Shot AOS

Ultrafast control of thin film nanomagnets using femtosecond laser pulses has attracted considerable attention for future ultrafast and energy-efficient photo-spintronics storage=memory devices. Single femtosecond laser pulse magnetization switching without an applied external magnetic field has been recently observed on various metallic thin films. Herein, a recent understanding of the physical Read more…

New Nano Letter “Ab Initio Study of Helicity-Dependent Light-Induced Demagnetization: From the Optical Regime to the Extreme Ultraviolet Regime”

In collaboration with the “Laboratoire de physique et chimie théoriques” and the Max Born Institute, we theoretically investigated the effect of optical and extreme ultraviolet (XUV) circularly polarized femtosecond pulses on the magnetization dynamics of ferromagnetic materials. Relying on real-time time-dependent density functional theory, we demonstrated that the light induces Read more…