Overview
Microwave oscillations of the magnetization around its equilibrium are the natural dynamical response to external perturbations (e.g. thermal fluctuations, microwave fields). This offers the promise for a new class of microwave devices, benefiting from their small foot-print, their ability to be controlled electrically, and their integrability with CMOS technology. Identified devices include local oscillators, microwave filters, detectors, and non-reciprocal devices. Understanding the dynamics of these nano-objects, applying general concepts of microwave oscillator techniques and defining from this novel microwave applications is the major aim of this activity.
Research directions
Spin Transfer Torque Oscillators
We are realizing and studying microwave emitting sources based on the magnetization precession, mainly in the shape of nanopillars made out of magnetic heterostrucures. This offer the possibility to build new devices for telecommunication in the Ghz range.
Magnonics
Magnons are the quasi-particles associated to the collective excitations of spins. Mode engineering and transfer of angular momentum by magnonics current are some of our key ongoing research activities.
The team
Former members
Post-docs
- Sylvain MOULIS
- Artem LITVINENKO
- Pankaj ZETHI
- Alumni : A. Ruiz Calafora, K. Jaimes Merazzo, K. Garcia Hernandez, C. Murapaka
PhD
- Nicolas Thiery
- Alumni : Kyota Watanabe (GP-Spin program), Matthieu Favre, Jérôme Hem, Anike Purbawati
Visitors
- W.E. Bailey – Columbia University (2009, 2010, 2011, 2012), A. N. Slavin – Oakland University (2012, 2013), V. Naletov (2016)
Projects
- ANR SPINNET
- ANR MAESTRO
- EU GREAT
- EU MOSAIC
- ANR SPINOVA
Partners
- Leti (Grenoble)
- Unité Mixte CNRS/Thale (Palaiseau),
- Service de l’etat condense-CEA (Saclay)
- Univ. Munster (Germany)
- INL (Portugal)
- University of Münster (Germany)
- Oakland University (United States of America)
Recent news
- SPINNET – An ANR project (October 10th, 2018)
Overview SPINNET stands for Microwave SPINtronics for Wireless Sensor NETworks. It is a 42-month-long ANR project. Wireless sensor networks WSN are a key technology of the Internet of things (IoT) that couples physical infrastructures with Information ... - MAESTRO – An ANR project (August 27th, 2018)
Magnon-spintronics aspires to become a novel information technology exploiting the spin degree of freedom. The goal of MAESTRO (2018-2021) is to masterize spin-wave (SW) turbulences occurring in low loss magnetic materials, whose benefit is to ... - Nonlinear properties of pure spin conductors (June 21st, 2018)
N. Thiery, A. Draveny, V. V. Naletov, L. Vila, J. P. Attané, C. Beigné, G. de Loubens, M. Viret, N. Beaulieu, J. Ben Youssef, V. E. Demidov, S. O. Demokritov, A. N. Slavin, V. S. ... - Detection of Short-Waved Spin Waves in Individual Microscopic Spin-Wave Waveguides Using the Inverse Spin Hall Effect (June 21st, 2018)
T. Brächer, M. Fabre, T. Meyer, T. Fischer, S. Auffret, O. Boulle, U. Ebels, P. Pirro, G. Gaudin, Nano Lett. 17, 7234 (2017) Detection of Short-Waved Spin Waves in Individual Microscopic Spin-Wave Waveguides Using the Inverse ... - Enhanced annealing stability and perpendicular magnetic anisotropy in perpendicular magnetic tunnel junctions using W layer (November 15th, 2017)
The stiffening of the perpendicular magnetic tunnel junction (pMTJ) stack resulting from the W insertion due to its very high melting temperature, is the key mechanism behind the extremely high thermal robustness. Thicker W layer ...
