Overview
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.
Research topics
Spin-Charge interconversion
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.
The team
Former members
Post-docs
- Yu FU (2015-2016)
- Juan Carlos ROJAS SANCHEZ (2010-2013)
- Yu FU (2015-2016, 2018-2019)
PhDs
- 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)
Internships
- 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)
Visitors
- Sara Varotto (2019-2020)
Projects
- 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)
Partners
- 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)
Recent news
- A new spintronic memristive component for neuromorphic circuits (November 18th, 2021)
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 ... - Seminar – Topological transverse transport effects and non-local magnon spin transport (November 04th, 2021)
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 ... - Masters thesis projects for Spring 2022 (September 17th, 2021)
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 ... - Jean-Philippe Attané appointed Senior Member of Institut Universitaire de France (IUF) (June 16th, 2021)
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 ... - Current-driven domain wall dynamics in ferrimagnetic nickel-doped Mn4N films (June 07th, 2021)
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 ...
