From single to multiple pulse all-optical switching in GdFeCo thin films - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2019

From single to multiple pulse all-optical switching in GdFeCo thin films

Résumé

All-optical switching refers to the magnetization reversal induced by ultrashort laser pulses. Both single-pulse all-optical helicity-independent switching and multiple pulses all-optical helicity-dependent switching have been reported for GdFeCo thin films. In this paper, we demonstrate that for two GdFeCo compositions, the transition between these two behaviors can appear by increasing the thickness of the Pt capping or by tuning the laser fluence. The two types of switching cannot be observed for the same set of parameters, which supports that their mechanisms are uncorrelated. Our calculations indicate that the transition may be induced by a strong inhomogeneity of the electronic temperature within the thickness of the GdFeCo layer in the subpicosecond timescale.
Fichier principal
Vignette du fichier
2019-Xu-From single to multiple pulse all-optical switching in GdFeCo thin films.pdf (1.47 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02337730 , version 1 (29-10-2019)

Identifiants

Citer

Yong Xu, Michel Hehn, Weisheng Zhao, Xiaoyang Lin, Grégory Malinowski, et al.. From single to multiple pulse all-optical switching in GdFeCo thin films. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2019, 100 (064424), ⟨10.1103/PhysRevB.100.064424⟩. ⟨hal-02337730⟩
57 Consultations
294 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More