Our team aims at manipulating spins currents in nanostructures, in particular in quantum materials with Dirac fermions, such as topological insulators or Weyl semimetals, or at oxide interfaces. Some important aspects of future spintronics devices, such as the efficient spin-charge interconversion at interfaces or the ballistic transport of spin states for quantum interconnects, are studied by magneto-transport measurements.
Nanostructure made of a horizontal stripe of spin Hall effect material, with two vertical ferromagnetic electrodes to probe the spin accumulation or to inject spin currents. The nanostructure allows probing both the charge-to-spin (left) and spin-to-charge (right) conversions due to the spin-orbit coupling.
Control of magnetization
Nanostructure possessing NiFe nanowires, in which magnetic domain walls can propagate. When located at the vicinity of the Cu nanowire, the domain wall can be used to inject or detect pure spin currents.
Ballistic spin currents
The ballistic surface Dirac fermions in a 3D topological insulator propagate on the cristal faces of a quantum wire. The well-defined cross section gives flux-periodic Aharonov-Bohm oscillations of the resistance, due to quantum interference, for a magnetic induction applied parallel to the nanowire. The spin-helical surface modes offer new possibilities to build quantum spintronics devices of simple geometry, either for dissipationless long-range interconnects or local spin filtering controled by a magnetic field or an electrostatic gate.
- Yu FU (2015-2016)
- Juan Carlos ROJAS SANCHEZ (2010-2013)
- Yu FU (2015-2016, 2018-2019)
- Andrei Mihai (2006-2009)
- Van Dai Nguyen (2009-2012)
- Piotr Laczkowski (2009-2012)
- Williams Savero-Torres (2011-2014)
- Pham Van Tuong (2014–2017)
- Gilles Zhand (2014-2017)
- Toshiki Gushi (2016-2019)
- Paul Noël (2016-2019)
- Aoyu Tan (2018-2021)
- Valentin Labracherie (2017-2021)
- Maxen Cosset-Cheneau (2019-2022)
- Sambit Ghosh (2019-2022)
- Williams Savero-Torres (2011)
- Gilles Zahnd (2014)
- Paul Noël (2016)
- Maxen Cosset-Cheneau (2018)
- Timothé Faivre (2009)
- Hélène Durand (2005)
- Andrei Mihai (2006)
- Carl Naylor (2011)
- Quentin Thiburce (2013)
- Clément Nguyen (2013)
- Sarah Ferry (2009)
- Cédric Mannequin (2008)
- Quentin Riffard (2010)
- Willy Lim (2016)
- Matthieu Praquin (2018)
- Marie-Paule Okinda (2020)
- Sara Varotto (2019-2020)
- ANR Contrabass (2020-2023)
- ITN H2020 Spears (2021-2024)
- ANR Oiso (2017-2021)
- ISP Idex UGA DOMINO (2018-2021)
- FET Proactive H2020 Tocha (2019-2023)
- IRS Idex UGA (2017-2020)
- Tsukuba University (Japan)
- Unité mixte de Physique CNRS/Thalès (Orsay)
- Néel Institute (Grenoble)
- Leti (Grenoble)
- Institut Jean Lamour (Nancy)
- Leibniz Institute IFW (Dresden)
- Technical University (Dresden)
- Non-volatile electric control of spin–charge conversion in a SrTiO3 Rashba system (April 22nd, 2020)
Electron spin—a fundamentally quantum property—is central to spintronics, a technology that revolutionized data storage, and that could play a major role in creating new computer processors. In order to generate and detect spin currents, spintronics ...
- Large Current-Driven Domain Wall Mobility by pure spin transfer torque in Ferrimagnetic Mn4N Thin Films (December 11th, 2019)
We found that Mn4N, a rare-earth free ferrimagnet made of abundant elements, is an exciting candidate for the development of sustainable spintronics devices. This material possess exciting properties, and in particular domain walls can be ...
- Seminar – Nernst effect experiments in magnetic thin films (November 04th, 2019)
On November 28th at 15:00, we have the pleasure to welcome Sebastian T. B. Goennenwein from Institut für Festkörper- und Materialphysik and Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität Dresden (Germany). He will give us ...
- PhD defense – Spin transfer in a magnetic insulator (October 25th, 2019)
On Thursday 28th of November at 10h00 Nicolas THIERY, will defend his thesis entitled : Spin transfer in a magnetic insulator (Transfert de spin dans un isolant magnétique) Place : CEA 17 rue des Martyrs, bat 1005 ...
- PhD defense – Dynamical spin injection and spin to charge current conversion in oxide-based Rashba interfaces and topological insulators (October 25th, 2019)
On Thursday 14th of November at 14h00 Paul NOËL, will defend his thesis entitled : Dynamical spin injection and spin to charge current conversion in oxide-based Rashba interfaces and topological insulators Place : CEA 17 rue des ...