Skip to Main content Skip to Navigation
Journal articles

Dynamical measurements of nucleation and propagation in a domain wall junction at low temperature

Abstract : GdFe (1000 Å)/TbFe (e)/GdFe (500 Å) sandwiches, where the thickness e of the TbFe film can be as small as 2 Å, constitutes a Domain Wall Junction (DWJ). In this device, a 180° domain wall, nucleated in the thicker GdFe layer, crosses an artificial energy barrier (the TbFe layer), by thermal activation (above 1 K). DWJs constitute a model system for the study of nucleation, pinning and depinning of a domain wall, in both thermal activation and quantum regimes. In the present case, quantum tunnelling of magnetisation is suggested below 0.7 K.
Document type :
Journal articles
Complete list of metadatas

Cited literature [17 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/hal-02104618
Contributor : Aurore Emonot <>
Submitted on : Tuesday, May 7, 2019 - 10:56:48 AM
Last modification on : Tuesday, May 5, 2020 - 1:24:20 AM
Long-term archiving on: : Thursday, August 8, 2019 - 12:16:20 PM

File

97 EPL Mangin.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Stéphane Mangin, G. Marchal, W. Wernsdorfer, A. Sulpice, K. Hasselbach, et al.. Dynamical measurements of nucleation and propagation in a domain wall junction at low temperature. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 1997, 39 (6), ⟨10.1209/epl/i1997-00414-0⟩. ⟨hal-02104618⟩

Share

Metrics

Record views

68

Files downloads

164