Modulating the Ferromagnet/Molecule Spin Hybridization Using an Artificial Magnetoelectric - Archive ouverte HAL
Article Dans Une Revue Advanced Functional Materials Année : 2017

Modulating the Ferromagnet/Molecule Spin Hybridization Using an Artificial Magnetoelectric

Marie Hervé
Charles-Henri Lambert
  • Fonction : Auteur
  • PersonId : 777023
  • IdRef : 188414258
Florian Leduc
  • Fonction : Auteur
Fadi Choueikani
  • Fonction : Auteur
  • PersonId : 871782
Edwige Otero
Philippe Ohresser

Résumé

Spin-polarized charge transfer at the interface between a ferromagnetic (FM) metal and a molecule can lead to ferromagnetic coupling and to a high spin polarization at room temperature. The magnetic properties of these interfaces can not only alter those of the ferromagnet but can also stabilize molecular spin chains with interesting opportunities toward quantum computing. With the aim to enhance an organic spintronic device’s functionality, external control over this spin polarization may thus be achieved by altering the ferromagnet/ molecule interface’s magnetic properties. To do so, the magnetoelectric properties of an underlying ferroelectric/ferromagnetic interface are utilized. Switching the ferroelectric polarization state of a PbZr0.2Ti0.8O3 (PZT) bottom layer within a PZT/Co/FePc-based (Pc - phthalocyanine) device alters the X-ray magnetic circular dichroism of the Fe site within the phthalocyanine molecular top layer. Thus, how to electrically alter the magnetic properties of an interface with high spin polarization at room temperature is demonstrated. This expands electrical control over spin-polarized FM/molecule interfaces, which is first demonstrated using ferroelectric molecules, to all molecular classes.
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Dates et versions

hal-02354239 , version 1 (07-11-2019)

Identifiants

Citer

Michał Studniarek, Salia Cherifi Cherifi-Hertel, Etienne Urbain, Ufuk Halisdemir, Rémi Arras, et al.. Modulating the Ferromagnet/Molecule Spin Hybridization Using an Artificial Magnetoelectric. Advanced Functional Materials, 2017, 27 (27), pp.1700259. ⟨10.1002/adfm.201700259⟩. ⟨hal-02354239⟩
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