Studies on interfacial and crystalline structures of spin valve multilayers

Author

Zheng, Yuankai ; Wang, Wendong ; Chai, Chunlin ; Lai, Wuyan ; Yuankai Zhen

Author_Institution

Center for Condensed Matter Phys., Acad. Sinica, Beijing, China

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2869

Lastpage

2871

Abstract

Spin valves of high quality were fabricated by a two-step deposition procedure. Lower sublayers (i.e., buffer layer Ta/free layer NiFe/inter layer Cu) are deposited at a lower argon pressure, which promoted formation of strong (111) textures, smooth interfaces and dense Cu film, and upper sublayers (i.e., pinned layer NiFe/pinning layer Fe/Mn/cover Ta) are deposited at a higher pressure, which promoted small grains and less diffusive interface. The independent control of the magnetoresistance, the ferromagnetic interlayer coupling, and exchange biasing was achieved by improving the interfacial and crystalline structures of the spin valves

Keywords

crystal structure; giant magnetoresistance; interface structure; spin valves; buffer layer Ta/free layer NiFe/inter layer Cu; crystalline structures; dense Cu film; exchange biasing; ferromagnetic interlayer coupling; interfacial structures; less diffusive interface; magnetoresistance; small grains; smooth interfaces; spin valve multilayers; strong (111) textures; upper sublayers; Argon; Couplings; Crystal microstructure; Crystallization; Giant magnetoresistance; Grain size; Magnetic films; Magnetic separation; Nonhomogeneous media; Spin valves;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908612

Filename

908612