MAGNETIC SENSORS

Overview

The group activities cover up-stream research on physical phenomenon potentially useful for future sensors, as well as sensor development (proof of concept) and expertise to support industrial R&D. This experimental research is essentially based on magnetic (VSM, MOKE) and electric measurements (magnetotransport, noise).

Research topics

Towards gate controlled devices

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The control of magnetic interfacial properties by a gate voltage allows low power control of spintronic devices and provides a versatile, local and dynamic degree of freedom that can be implemented in innovative designs. Aiming at an efficient control of devices, we optimize materials and unravel the mechanisms of electric field effect on interfacial anisotropy, Dzyalonshinskii-Moriya interaction (DMI), and non-trivial spin textures such as skyrmions.

Ultra-sensitive sensor for space

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We develop an ultra-sensitive sensor able to detect magnetic fields smaller than 1pT at low frequency. This sensor could replace magnetic sensors usually boarded on space mission with a significant weight reduction, or be used for magneto-cardiography.

Industrial sensor design

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We provide design principles to the company Crocus Technology to target specific sensor performance in terms of sensitivity, noise, detectivity, linearity, and hysteresis. For this purpose, we perform electrical characterization, noise measurements and analysis, and numerical simulations.

The team

Former members

Research engineer

  • Amandine BOCHEUX (2015-2016)
  • Arnaud PAGEAU (2017-2018)
  • Julien VIDAL (2017-2018)

PhD

  • Myckael MOUCHEL (2014-2017)
  • Marine SCHOTT (2014-2017)
  • Paulo COELHO (2014-2017)
  • Titiksha SRIVASTAVA (2015-2018)

Projects

  • ANR-ADMIS (2019-2022)
  • Projet européen ATTRACT (2019-2020)
  • R&T CNES (2019-2021)
  • ANR-Elecspin (2016-2020)
  • Projet de collaboration Crocus
  • Projet de collaboration LPC2E

Partners

  • Institut NEEL, Grenoble, France
  • Crocus Technology, Grenoble, France
  • LPC2E, Orléans, France
  • C2N, Palaiseau, France
  • Ecole Polytechnique, LMC, Palaiseau, France
  • IJL, Nancy, France
  • Université d’Osaka, Japon
  • LP2N, Institut d’optique, Bordeaux, France
  • LPCNO, Toulouse, France

Recent news

  • Proposals for student internships for Spring 2018 (October 03rd, 2017) Proposals for student internships for Spring 2018
    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 ...
  • A skyrmion switch (September 28th, 2017) A skyrmion switch
    Nanoscale magnetic skyrmions are good candidates for data manipulation and storage in spintronic applications (logic and/or memory). M. Schott et al. have recently shown that a gate voltage can nucleate or annihilate skyrmions. This proof ...
  • PhD defense : Development of low-noise magnetic tunnel junctions for magnetic field sensors (May 23rd, 2017) PhD defense : Development of low-noise magnetic tunnel junctions for magnetic field sensors
    On Thursday, the 22th Of June 2017 at 14h00, Myckael MOUCHEL from CROCUS TECHNOLOGY (DRF/INAC/SPINTEC), will defend his PhD thesis entitled “Development of low-noise magnetic tunnel junctions for magnetic field sensors” Place : Amphithéâtre Grenoble INP-PHELMA ...
  • GREAT – A H2020 ICT project at SPINTEC (June 30th, 2016) GREAT - A H2020 ICT project at SPINTEC
    Overview GREAT (European H2020 project) was accepted at the Summer 2015. Its kick-off meeting took place at SPINTEC in Grenoble on February 22nd-23rd 2016. The project aims at developing magnetic stacks able to equally perform memory, radio-frequency ...
  • Magnetic sensors (September 11th, 2015)
    Thematic overview Spintec was originally heavily involved in read heads for disk drive, yet this activity all but vanished due to the strong consolidation of the industry, now with only two players with strong internal R&D ...

Publications

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