Titre :

Elaboration of nanomagnet arrays: organization and magnetic properties of mass-selected FePt nanoparticles deposited on epitaxially grown graphene on Ir(111)

Auteur(s) :

Capiod, Pierre [Auteur]
Physique - IEMN [PHYSIQUE - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Bardotti, Laurent [Auteur]
iLM - Nanostructures magnétiques [iLM - MAGNETIQUES]
Tamion, Alexandre [Auteur]
iLM - Nanostructures magnétiques [iLM - MAGNETIQUES]
Boisron, Olivier [Auteur]
iLM - Nanostructures magnétiques [iLM - MAGNETIQUES]
Albin, Clément [Auteur]
iLM - Nanostructures magnétiques [iLM - MAGNETIQUES]
Dupuis, Veronique [Auteur]
iLM - Nanostructures magnétiques [iLM - MAGNETIQUES]
Renaud, Gilles [Auteur]
Nanostructures et Rayonnement Synchrotron [NRS ]
Ohresser, Philippe [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Tournus, Florent [Auteur]
iLM - Nanostructures magnétiques [iLM - MAGNETIQUES]

Titre de la revue :

Physical Review Letters

Pagination :

106802

Éditeur :

American Physical Society

Date de publication :

2019-03

ISSN :

0031-9007

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]

Résumé en anglais : [en]

The moiré pattern created by the epitaxy of a graphene sheet on an iridium substrate can be used as a template for the growth of 2D atomic or cluster arrays. We observed for the first time a coherent organization of hard ...
Lire la suite >The moiré pattern created by the epitaxy of a graphene sheet on an iridium substrate can be used as a template for the growth of 2D atomic or cluster arrays. We observed for the first time a coherent organization of hard magnetic preformed FePt nanoparticles on the 2D lattice of graphene/Ir(111). Nanoparticles of 2 nm diameter have been mass-selected in gas phase and deposited with a low energy on the hexagonal moiré pattern. Their morphology and organization have been investigated using Grazing Incidence Small Angle X-ray Scattering, while their magnetic properties have been studied by X-ray Magnetic Circular Dichroism, both pointing to a FePt cluster/graphene surface specific interaction. The spatial coherence of the nanoparticles is preserved upon annealing up to 700°C where the hard magnetic phase of FePt is obtained.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL