2026-06-08T12:23:34Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/954782025-09-01T17:58:47Zcom_20.500.14352_14col_20.500.14352_15
Enhanced stability in spin transfer nanopillars due to a Fe/Gd/Fe trilayer
Romera Rabasa, Miguel Álvaro
Grollier, Julie
Collin, Sophie
Devolder, Thibaut
Cros, Vincent
Muñoz, Manuel
Prieto, José Luis
A sharp antiferromagnetic boundary of Fe/Gd is found to affect notoriously the critical current for spin transfer torque (STT). Transport measurements performed on nano-patterned spin valves show that when a Fe/Gd/Fe is added as a top layer, the effect of spin transfer on the free layer is dramatically reduced. The critical current increases up to one order of magnitude at 10 K and five times at room temperature. We show that this increase cannot be fully explained by the macrospin approximation and we argue that it is due to a torque at the Gd/Fe interface that opposes the STT in the free layer.
2024-01-25T13:42:56Z
2024-01-25T13:42:56Z
2024-01-25T13:42:56Z
2013
journal article
https://hdl.handle.net/20.500.14352/95478
0003-6951
10.1063/1.4821510
1077-3118
eng
info:eu-repo/grantAgreement/MAT2011-28532-C03-03
info:eu-repo/grantAgreement/MAT2009-08771
info:eu-repo/grantAgreement/AP2007-00464
Miguel Romera, Julie Grollier, Sophie Collin, Thibaut Devolder, Vincent Cros, Manuel Munoz, and Jose L. Prieto , Appl. Phys. Lett. 103, 122404 (2013)
restricted access
AIP Publishing