Spin transfer torque in nanopillar spin-valve with [CoFe/Pd]2 double free-layers

Author

Lee, Jae-Chul ; You, Chun-Yeol ; Choe, Sug-Bong ; Lee, Kyung-Jin ; Shin, Kyung-Ho

Author_Institution

Dept. of phys., Inha Univ., Incheon

Volume

1

fYear

2006

fDate

22-25 Oct. 2006

Firstpage

604

Lastpage

605

Abstract

We studied spin transfer torque in nanofabricated pillars with |CoFe/Pd]2 double free-layers. This sample showed various spin transfer switching properties as a function of external magnetic fields. We report the first observation of two-step switching and the inversion of f I^c _APrarrP and I^c _APrarrP characterized by spin directions of three magnetic layers. Telegraph noise confirms the inversion in single domain model.

Keywords

cobalt alloys; iron alloys; magnetic domains; magnetic noise; magnetic switching; nanostructured materials; palladium; spin polarised transport; spin valves; CoFe-Pd; CoFe-Pd - Interface; double free-layers; magnetic layers; nanopillar spin-valve; single domain model; spin transfer switching properties; spin transfer torque; telegraph noise; two-step switching; Anisotropic magnetoresistance; Computer integrated manufacturing; Magnetic domains; Magnetic fields; Magnetic noise; Magnetic separation; Magnetic switching; Telegraphy; Threshold current; Torque; spin torque; telegraph noise; two free layer;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE

Conference_Location

Gyeongju

Print_ISBN

978-1-4244-0540-4

Electronic_ISBN

978-1-4244-0541-1

Type

conf

DOI

10.1109/NMDC.2006.4388924

Filename

4388924