Comparision of giant magneto-resistance behavior with conductance change based on the bulk-scattering in pseudo spin-valve

Author

Nam, C. ; Jang, Y. ; Lee, K. ; Shim, J. ; Cho, B.

Author_Institution

GwangJu Inst. of Sci. & Eng. (GIST), Gwang-Ju

fYear

2006

fDate

8-12 May 2006

Firstpage

490

Lastpage

490

Abstract

In this study, the effects of post annealing temperature ranging from 250 degC to 350 degC on the giant magnetoresistance (GMR) ratio and conductance change (DeltaG) have been investigated. The structure of the GMR spin-valve consists of Cu (10 A) / IrMn (80 A) / CoFe (15 A) / NOL / CoFe (20 A) / Cu (28 A) / CoFe (t_f) / NOL / Cu (10 A) / Al₂O₃ where t_f is varied from 10 A to 200 A and NOL is a nano-oxide layer.

Keywords

alumina; cobalt alloys; copper; giant magnetoresistance; heat treatment; iridium alloys; iron alloys; magnetic multilayers; manganese alloys; spin valves; CoFe-Cu; Cu-Al₂O₃; Cu-CoFe; Cu-IrMn-CoFe; GMR spin valve structure; bulk scattering; conductance change; giant magnetoresistance behavior; nanooxide layer; post annealing temperature effects; pseudo spin valve; size 10 A to 200 A; temperature 250 degC to 350 degC; Aluminum oxide; Annealing; Boltzmann equation; Current distribution; Giant magnetoresistance; Magnetic multilayers; Magnetic properties; Magnetic sensors; Magnetic separation; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.376214

Filename

4261923