Isotropic spin and inverse spin Hall effect in epitaxial (111)-oriented Pt/Co bilayers - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Physical Review Materials Année : 2023

Isotropic spin and inverse spin Hall effect in epitaxial (111)-oriented Pt/Co bilayers

Résumé

The spin-to-charge current interconversion in bilayers composed of ferromagnetic and nonmagnetic layers with strong spin-orbit coupling has garnered considerable attention due to its exceptional potential in advancing spintronics devices for data storage and logic applications. Platinum (Pt) stands out as one of the most effective materials for generating spin current. While the spin conversion efficiency is isotropic in polycrystalline Pt samples, an ongoing debate persists regarding its dependence on the crystalline direction in single crystalline samples. In this study, we aim to comprehensively evaluate the in-plane anisotropy of spin-charge interconversion using an array of complementary spin Hall and inverse spin Hall techniques with both incoherent and coherent excitation. Specifically, we investigate the spin-to-charge interconversion in epitaxial, (111)-oriented, Co/Pt bilayers with low surface roughness, as resulted from x-ray experiments. By varying the thickness of the Pt layer, we gain insights into the spin-charge interconversion in epitaxial Pt and highlight the effects of the interfaces. Our results demonstrate an isotropic behavior within the limits of our detection uncertainty. This finding significantly enhances our understanding of spin conversion in one of the most relevant systems in spintronics, and it paves the way for future research in this field.
Fichier principal
Vignette du fichier
2311.13400.pdf (2.07 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04537763 , version 1 (08-04-2024)

Identifiants

Citer

Adrián Gudín, Alberto Anadón, Iciar Arnay, Rubén Guerrero, Julio Camarero, et al.. Isotropic spin and inverse spin Hall effect in epitaxial (111)-oriented Pt/Co bilayers. Physical Review Materials, 2023, 7 (12), pp.124412. ⟨10.1103/PhysRevMaterials.7.124412⟩. ⟨hal-04537763⟩
4 Consultations
14 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More