Time dependent magnetics of exchange biased spin valves

Author

Mao, Sining ; Yang, Zhijun ; Gao, Zheng ; Han, Dehua ; Pokhil, Taras

Author_Institution

Seagate Recording Heads, Minneapolis, MN, USA

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3056

Lastpage

3058

Abstract

Different sweep field rates result in different pinning field and coercivity in the pinned layer of a spin valve. Annealed samples showed more profound time dependent magnetic properties as compared to the as-made films. The pinning field decreases with the sweep rate if the AFM layer is thinner than a minimum thickness. The coercivity increases with the sweep rate and is also FM layer thickness dependent. The thin FM layer showed less effect than the thicker FM layer

Keywords

annealing; antiferromagnetic materials; coercive force; exchange interactions (electron); ferromagnetic materials; iridium alloys; iron alloys; magnetic heads; magnetic recording; manganese alloys; nickel alloys; platinum alloys; spin valves; IrMn-NiFe; NiMn-NiFe; PtMn-NiFe; annealed samples; antiferromagnetic layer; coercivity; exchange biased spin valves; ferromagnetic layer; magnetic recording heads; pinned layer; pinning field; sweep field rates; time dependent magnetics; Annealing; Antiferromagnetic materials; Coercive force; Frequency; Magnetic films; Magnetic heads; Magnetic properties; Magnetic recording; Spin valves; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908677

Filename

908677