TOPOLOGICAL SPINTRONICS

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 by spin Hall effect or Rashba-Edelstein effect, in metals, semiconductors, topological insulators and 2-dimensional electron gas

Control of domain walls and magnetization using spin currents and the spin-orbit coupling

Ballistic helical spin currents in a monocrystalline 3D topological insulator quantum wire, inducing conductance oscillations due to coherent Dirac surface states (Aharonov-Bohm quantum interferences).

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)
  • Paul NOEL (2016-2019)

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

  • Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves (March 04th, 2021)Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves
    The spin absorption process in a ferromagnetic material depends on the spin orientation relatively to the magnetization. Using a ferromagnet to absorb the pure spin current created within a lateral spin valve, we evidence and ...
  • Independence of the Inverse Spin Hall Effect with the Magnetic Phase in Thin NiCu Films (February 25th, 2021)Independence of the Inverse Spin Hall Effect with the Magnetic Phase in Thin NiCu Films
    Large spin Hall angles have been observed in 3d ferromagnetic materials, but their origin, and especially their link with the ferromagnetic order, remain unclear. Here, we investigated the evolution of the inverse spin Hall Effect ...
  • CONTRABASS – An ANR project (January 15th, 2021)CONTRABASS – An ANR project
    CONTRABASS stands for Ferroelectric control of Rashba states, a 42 months ANR project starting in December 2020. Spintronics devices involve ferromagnetic elements with high switching energies. Contrastingly, the polarization of ferroelectrics can be easily ...
  • SPEAR – An H2020 ITN project (December 20th, 2020)SPEAR - An H2020 ITN project
    Spintec is part of a European-funded ITN project called SPEAR: Spin-orbit materials, emergent phenomena and related technology training. The project, coordinated by CIC nanoGUNE, seeks to explore new materials for the next generation of computer ...
  • Masters thesis projects for Spring 2021 (September 15th, 2020)Masters thesis projects for Spring 2021
    You find here the list of proposals for Master-2 internships to take place at Spintec during Spring 2021. In most cases, these internships are intended to be suitable for a longer-term PhD work. Interested Master-1 ...

Publications

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