MICROWAVE DEVICES

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

particles
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

particles
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

  • MARIN – An ANR project (February 25th, 2021)MARIN – An ANR project
    MARIN stands for Magnon Reservoir computINg. It is a 42 months researcher project funded by the French ANR. MARIN aims at showing that spin waves can be used in the field of “wave-computing” where oscillatory ...
  • Review – Spin insulatronics (February 15th, 2021)Review - Spin insulatronics
    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. ...
  • Spin-information transported over long-distances at room temperature in the ultra-low damping hematite antiferromagnet (February 09th, 2021)Spin-information transported over long-distances at room temperature in the ultra-low damping hematite antiferromagnet
    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 ...
  • SpinSpike – An ANR project (January 19th, 2021)SpinSpike – An ANR project
    SpinSpike stands for Spintronic Spiking Neurons. It is a 42-month-long ANR project (2021/2024). Spintronics has recently shown its promise for neuromorphic computing, but is lacking an essential ingredient of biological neural networks: spiking neurons. In this ...
  • k-net – An H2020 project (January 05th, 2021)k-net - An H2020 project
    A key component of artificial intelligence is neuromorphic computing, which represents the endeavor to replicate the human brain to perform efficiently very complex tasks such as pattern recognition. Until now, almost all practical implementations of ...

Publications

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