THEORY / SIMULATION

Overview

The group covers all aspects of fundamental physics related to spin electronics by employing a wide range of theoretical approaches including ab initio, tight-binding, free electron and diffusive methods, combined with micromagnetic simulation approaches based on solution of Landau-Lifshitz-Gilbert (LLG) equation. This allows explaining experimental observations, providing solutions for specific problems and predicting novel properties and phenomena guiding the experimental work to optimize spintronic nanostructures.

Research directions

Electronic structure and magnetic properties of materials from first principles

Ab initio calculations based on DFT are performed in order to provide insights into fundamental mechanisms of various spintronic phenomena, and to propose novel materials and their efficient combinations with required electronic structure and magnetic properties for optimal performance of spintronic devices.

Spin-dependent transport theories

We employ tight-binding, free electron and diffusive approaches including Green function techniques in the framework of Keldysh and Kubo formalisms, in order to describe spin and charge transport properties in magnetic nanostructures with non-collinear magnetic moments in vertical, lateral and complex geometries.

Theoretical concepts for organic and graphene spintronics

The goal of this topic is to harvest theoretically novel spin-dependent properties (e.g. proximity effects and defect induced magnetism etc.) in organic, graphene and related 2D materials based structures in the context of emerging field of graphene spintronics.

Micromagnetic modeling

Magnetization dynamics (macrospin and micromagnetic) simulations under applied magnetic field and/or spin polarized currents are developed to address functionalities of spintronic devices (e.g. magnetization switching, synchronization and modulation for oscillators) in various geometries. Straightforward analytical models are developed to supplement fast and efficient understanding of the magnetization dynamics.

The team

Former members

Post-docs

  • Sergey NIKOLAEV (2015-2017)
  • Debapriya CHAUDHURY (2016-2018)
  • Cristian ORTIZ PAUYAC (2016-2017)
  • Hongxin YANG (2013-2015)

PhD

  • Paulo COELHO (with Magnetic Sensors Group, 2014-2017)

Internships

  • Brian CHARLES (with MRAM Group, 2016)

Projects

  • EU H2020 FET Project Flagship “Graphene” Core 2 (2018-2020)
  • ANR FEOrgSPIN (2018-2021)
  • ANR JCJC MATEMAC-3D (2017-2020)
  • EU H2020 ICT Project “SPICE” (2016-2020)
  • EU H2020 ICT Project “GREAT” (2016-2019)
  • ANR ELECSPIN (2016-2019)
  • EU H2020 FET Project Flagship “Graphene” Core 1 (2016-2018)
  • EU FET FP7 Project Flagship “Graphene” (2013-2016)
  • EU M-ERA.NET HEUMEM supported via ANR-DFG (2014-2017)
  • UGA Émergence et partenariat stratégique avec Western Digital (2015-2017)
  • Samsung SGMI (2014-2017)
  • ANR SOSPIN (2013-2016)
  • ANR NMGEM (2010-2015)
  • AGI14SMI15 AGIR (2014-2015)

Partners

  • Transilvania University, Brasov, Romania
  • IRIG/PHELIQS, Grenoble, France
  • Institut Néel, Grenoble, France
  • Unité Mixte Physique CNRS/Thalès, Palaiseau, France
  • Laboratoire de Physique des Solides, Orsay, France
  • Catalan Institute of Nanotechnology, Barcelona, Spain
  • Institut Jean Lamour, Nancy, France
  • Moscow Lomonosov State University, Moscow, Russia
  • King Abdullah University of science and technology, Thuwal, Saudi Arabia
  • University of Puerto Rico, San Juan, PR, USA
  • Western Digital Corporation, CA, USA
  • University of Bielefeld, Germany
  • University of Kaiserslautern, Germany
  • Max Planck Institute for Chemical Physics of Solids, Dresden, Germany
  • Lawrence Berkeley National Laboratory, Berkeley, CA, USA
  • ETH, Zurich, Switzerland
  • NIMTE, Ningbo, China

Recent news

  • Seminar : Spintronics with Ferroelectrics (June 21st, 2017)Seminar : Spintronics with Ferroelectrics
    On June 27 at 11h Prof. Evgeny Tsymbal from University of Nebraska will give a talk entitled “Spintronics with Ferroelectrics” Place : l’amphithéâtre Laurent Puech (2-D-004) in GreEN-ER building “Spintronics with Ferroelectrics” Ferroelectric materials are characterized ...
  • Tailoring magnetic insulator proximity effects in graphene: first-principles calculations (June 07th, 2017)Tailoring magnetic insulator proximity effects in graphene: first-principles calculations
    Advancing spintronic devices requires using novel 2D materials including graphene with featured properties. In particular, a significant effort has been focused on injecting spins and inducing magnetism in graphene giving rise to emerging field of ...
  • Seminar: Inducing Magnetism and Spin-Orbit coupling into Graphene (November 25th, 2016)
    Dr. David Soriano Catalan Institute of Nanoscience and Nanotechnology (ICN2)  Where: room 434 A, Building 10.05, CEA-Grenoble.             The possibility to manipulate the magnetism at the atomic scale in 2D materials shown promising for the next generation of data ...
  • ELECSPIN – An ANR project (July 29th, 2016)ELECSPIN - An ANR project
    Objectives ELECSPIN project has just been accepted at the 2016 ANR call. This collaborative research project aims to investigate the advanced concept of radically new nanoelectronics devices based on the electric-field control of spin-based phenomena and establish proof of principle ...
  • Giant enhancement of magnetic effect will benefit spintronics (January 08th, 2016)Giant enhancement of magnetic effect will benefit spintronics
    Giant enhancement of magnetic effect will benefit spintronics Researchers from Spintec have demonstrated that coating a cobalt film in graphene doubles the film’s perpendicular magnetic anisotropy (PMA), so that it reaches a value 20 times higher ...

Publications

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