Skip to Main content Skip to Navigation
Journal articles

Magnetic aftereffects in CoFeB/Ta/CoFeB spin valves of large area

Abstract : Magnetic aftereffect measurements on a synthetic antiferromagnet with strong perpendicular anisotropy are presented. Two types of magnetic transitions are observed in the CoFeB/Ta/CoFeB bilayer where the two ferromagnetic CoFeB layers are antiferromagnetically coupled: the transition from a parallel to an antiparallel CoFeB layers magnetization alignment and the transition between two possible antiparallel magnetization states. Magnetic relaxation measurements show a complete reversal in the case of the transition between the two antiferromagnetic configurations. The experimental data can be well fitted in the frame of extended exponential relaxation using the Fatuzzo-Labrune model. Consequently, the domain nucleation and domain-wall propagation can be studied as a function of temperature and applied field.
Document type :
Journal articles
Complete list of metadata

Cited literature [46 references]  Display  Hide  Download
Contributor : Aurore Emonot Connect in order to contact the contributor
Submitted on : Friday, February 8, 2019 - 9:47:51 AM
Last modification on : Tuesday, September 27, 2022 - 4:37:25 AM
Long-term archiving on: : Thursday, May 9, 2019 - 2:19:38 PM


PRB-Relax SAF- Morgunov 17.pdf
Publisher files allowed on an open archive



R. Morgunov, Y. Lu, M. Lavanant, T. Fache, X. Deveaux, et al.. Magnetic aftereffects in CoFeB/Ta/CoFeB spin valves of large area. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2017, 96 (5), ⟨10.1103/physrevb.96.054421⟩. ⟨hal-02011666⟩



Record views


Files downloads