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

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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

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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

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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

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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

Permanent staff

CHSHIEV
Mairbek CHSHIEV
mair.chshiev@cea.fr
Web page

BUDA
Liliana PREJBEANU-BUDA
liliana.buda@cea.fr
 

GUSAKOVA
Daria GUSAKOVA
daria.gusakova@cea.fr

MARTY
Alain MARTY
alain.marty@cea.fr

Post-docs

  • Sergey NIKOLAEV (2015-2017)
  • Debapriya CHAUDHURI (2016-2018)
  • Cristian ORTIZ PAUYAC (2016-2017)
  • Nikita STRELKOV (with MRAM Group, 2016-2019)

PhD

  • Arnaud DE RIZ (2017-2020)
  • Daniel SOLIS LERMA (2016-2019)
  • Paulo COELHO (with Magnetic Sensors Group, 2014-2017)

Internships

  • Brian CHARLES (with MRAM Group, 2016)

Projects

  • ANR JCJC MATEMAC-3D (2017-2020)
  • EU FET FP7 and H2020 Flagship “Graphene” (2013-)
  • 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
  • CEA/LETI, Grenoble, France
  • INAC/PHELIQS, Grenoble, France
  • Institut Néel, Grenoble, France
  • Unité Mixte Physique CNRS/Thalès, Palaiseau, France
  • Laboratoire de Physique des Solides, Orsay, France
  • IEF, 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

    Recent news

  • Seminar: Towards organic spintronics: embedded many-body perturbation approach for metal-molecule spinterface (June 12th, 2018)
    Monday, June 25th, 11 a.m, room 434A “Towards organic spintronics: embedded many-body perturbation approach for metal-molecule spinterface” by Jing Li, condensed matter theory group, Neel Institute, Grenoble Abstract Organic spintronics is a young and rising research field ...
  • Spin Hall and Spin Swapping Torques in Diffusive Ferromagnets (May 30th, 2018)
    A complete set of the generalized drift-diffusion equations for a coupled charge and spin dynamics in ferromagnets in the presence of extrinsic spin-orbit coupling is derived from the quantum kinetic approach, covering major transport phenomena, ...
  • Post-doctoral position: Finite element modeling for spintronics (May 28th, 2018)
    SPINTEC offers a theoretical post-doctoral position in finite element modeling for Spintronics. The objective of our project is to combine key ingredients for modern Spintronics and SpinOrbitronics modeling within the original finite element based multi-physics ...
  • Proposals for student internships for Spring 2018 (October 03rd, 2017)
    You find here the list of proposals for Master-2 internships to take place during Spring 2018. In most cases, these internships are intended to be suitable for a longer-term PhD work. Interested Master-1 students are ...
  • Book – Introduction to Random-Access Memory (September 01st, 2017)
    B. Dieny, R. B. Goldfarb, K.-J. Lee (Eds), IEEE Press, Wiley (2017). With chapter authorship from Spintec: L. Buda-Prejbeanu, L. Prejbeanu, B. Diény. DOI: 10.1002/9781119079415 Magnetic random-access memory (MRAM) is poised to replace traditional computer memory based on ...

Publications

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