Non-volatile ionic modification of the Dzyaloshinskii Moriya Interaction - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Applied Année : 2019

Non-volatile ionic modification of the Dzyaloshinskii Moriya Interaction

L. Herrera Diez
Y Liu
  • Fonction : Auteur
  • PersonId : 4334
  • IdHAL : yi-liu
Jan Vogel
A. Lamperti
  • Fonction : Auteur
D Querlioz
J Langer
  • Fonction : Auteur
B. Ocker
  • Fonction : Auteur

Résumé

The possibility to tune the Dzyaloshinskii Moriya interaction (DMI) by electric (E) field gating in ultra-thin magnetic materials has opened new perspectives in terms of controlling the stabilization of chiral spin structures. Most recent efforts have used voltage-induced charge redistribution at the interface between a metal and an oxide to modulate DMI. This approach is attractive for active devices but it tends to be volatile, making it energy demanding, and it is limited by Coulomb screening in the metal. Here we have demonstrated the non-volatile E-field manipulation of DMI by ionic liquid gating of Pt/Co/HfO2 ultra-thin films. The E-field effect on DMI scales with the E-field exposure time and is proposed to be linked to the migration and subsequent anchoring of oxygen species from the HfO2 layer into the Co and Pt layers. This effect permanently changes the properties of the material showing that E-fields can not only be used for local gating in devices but also as a highly scalable materials design tool for post-growth tuning of DMI.
Fichier principal
Vignette du fichier
CoPtNonVolatileDMI-ResubPRApp.pdf (5.94 Mo) Télécharger le fichier
Resub-SupplementaryInformationCoPt.pdf (2.09 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02331252 , version 1 (24-10-2019)

Identifiants

Citer

L. Herrera Diez, Y Liu, D. Gilbert, M. Belmeguenai, Jan Vogel, et al.. Non-volatile ionic modification of the Dzyaloshinskii Moriya Interaction. Physical Review Applied, 2019, 12 (3), pp.034005. ⟨10.1103/PhysRevApplied.12.034005⟩. ⟨hal-02331252⟩
122 Consultations
216 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More