Extracting magnetic anisotropy energies in Co/Pd multilayers via refinement analysis of the full magnetoresistance curves

We performed magnetoresistance (MR) measurements on Co/Pd multilayers with perpendicular magnetization anisotropy, as a function of external magnetic field direction and magnitude. We find that anisotropic MR for magnetization perpendicular to plane (and to the current) is surprisingly larger than t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of applied physics 2014-05, Vol.115 (17)
Hauptverfasser: Kachlon, Yaniv, Kurzweil, Noa, Sharoni, Amos
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We performed magnetoresistance (MR) measurements on Co/Pd multilayers with perpendicular magnetization anisotropy, as a function of external magnetic field direction and magnitude. We find that anisotropic MR for magnetization perpendicular to plane (and to the current) is surprisingly larger than the anisotropic MR when magnetization is in-plane but perpendicular to the current. We develop a refinement process for accurately and easily extracting the anisotropy energies from the full set of MR measurements. We demonstrate its effectiveness for micron-scale electrodes of the multilayers. Here, using the additional difference in MR of the out-of-plane direction, we extract both the shape anisotropy energy and perpendicular anisotropy energy.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4874217