Jean-François DAYEN

Jean-François DAYEN

Maître de conférences, Magnétisme des objets nanostructurés (DMONS)Jean-Francois.Dayen@ipcms.unistra.fr
Tél: +33(0)3 88 10 70 74Bureau: 1012

Research Interests

I explore new strategies to build functional devices based on nanostructures and new materials – and in the meanwhile to contribute to a better understanding of the physical properties of these new systems.

Main Research interests :

  • Charge & Spin transport properties of 2D materials and van der Waals heterostructures.
  • Optoelectronics properties of nanomaterials (Quantum dots, Molecules, 2D materials and their hybrids).
  • Magnetic properties of nanomaterials.
  • Multi-functional devices.
  • Nanofabrication

Scientific life : I am co-animating the Research Axis « Electronic Transport and its Interfaces » of the GDR 2112 « HOWDI » research group: Van der Waals hetero-structures of low dimensionality.

Instrumentation

  • Nanofabrication @ StNano clean room.
  • Van der Waals engineering of 2D heterostructures @ 2DLab in IPCMS.
  • Optical & electronic lithography.
  • Low temperature magneto-transport measurements (AC/DC, 1.5K to 330K, 9 Tesla).
  • Photoconduction measurements.
  • AFM, PFM…
  • Focus Ion Beam.

Present status

  • Enseignant-Chercheur (Associate Professor) at Université de Strasbourg (UNISTRA).
  • Junior Fellow at Institut Universitaire de France (IUF) (2019-2024).

Publications

For an updated list of publication check :

Some example of work done in our team :

  • Electrical Readout of Light-Induced Spin Transition in Thin Film Spin Crossover/Graphene Heterostructure
    N Konstantinov et al., Journal of Materials Chemistry C 2021, 9, 2712. (link here)
  • Reconfigurable 2D/0D p-n Graphene/HgTe Nanocrystal Heterostructure for Infrared Detection
    U.N. Noumbe et al., ACS Nano 2020, 14, 4567. (link here)
  • Conductivity in organic semiconductors hybridized with the vacuum field
    E. Orgiu et al. Nature Materials 2015, 14, 1123.
  • Nanoplatelets bridging a Nanotrench: a new architecture for photodetectors with increased sensitivity.
    E. Lhuillier*, J.F. Dayen* et al., Nano Letters 2015, 15, 1736. (link here)
  • Voltage-controlled inversion of tunnel magnetoresistance in epitaxial Nickel/Graphene/MgO/Cobalt junctions
    F. Godel et al., Appl. Phys. Lett. 2014, 105, 152407. (link here)
  • Enhancing the Molecular Signature in Molecule-Nanoparticle Networks Via Inelastic Cotunneling.
    J.-F. Dayen et al. Advanced Materials 2013, 25: 400–404. (link here)
  • Light triggered self-fabrication of supramolecular organic nanowires as metallic interconnects.
    V.Faramarzi et al., Nature Chemistry 2012, 4, 485–490. (link here)

Review article :

  • Two-dimensional van der Waals spinterfaces and magnetic-interfaces
    J.F. Dayen*, S. J. Ray, O. Karis, I.J. Vera-Marun* and M. Venkata Kamalakar*
    Applied Physics Review, 7, 011303 (2020) (link here)