Study in the Tunneling Junction of the NiFe/Al2O3/NiFe and NiFe/ Al2O3/CoFe Giant Magneto Resistance Effect

Author

Gui, Tai-Long ; Jing, Xu ; Li-Chao, Liang ; Luo-Xi, Chen ; Xiao-Long, Xu ; Yan-Fei, Li

Author_Institution

Dept. of Electron. Sci. & Technol., Harbin Univ. of Sci. & Technol.

fYear

2006

Firstpage

193

Lastpage

196

Abstract

A DC magnetron sputtering method has been used to prepare the multilayer tunneling samples of NiFe/Al₂O₃/NiFe and NiFe/Al₂O₃/CoFe in this paper. The tunneling magneto resistance effect and negative-resistance effect have been investigated and the V-C characteristic of the samples has been measured. This paper has also discussed the effects of the thickness of oxide insulating coating and ferromagnetic layer and annealing temperature on the giant magneto resistance of the tunneling.

Keywords

alumina; annealing; cobalt alloys; ferromagnetic materials; giant magnetoresistance; insulating coatings; iron alloys; magnetic multilayers; negative resistance; nickel alloys; sputter deposition; tunnelling magnetoresistance; DC magnetron sputtering method; NiFe-Al₂O₃-CoFe; NiFe-Al₂O₃-NiFe; annealing temperature; ferromagnetic layer; giant magneto resistance effect; multilayer tunneling samples; negative-resistance effect; oxide insulating coating; tunneling junction; Aluminum oxide; Electric resistance; Electrical resistance measurement; Immune system; Insulation; Magnetic field measurement; Saturation magnetization; Sputtering; Tunneling; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology, The 1st International Forum on

Conference_Location

Ulsan

Print_ISBN

1-4244-0426-6

Electronic_ISBN

1-4244-0427-4

Type

conf

DOI

10.1109/IFOST.2006.312230

Filename

4107353