The structural and magnetic characterization of molecular-beam-epitaxy-grown FeMn-NiFe exchange-biased bilayers

Author

Choi, Young-Suk ; Petford-Long, Amanda K. ; Ward, Roger C C

Author_Institution

Dept. of Mater., Oxford Univ., UK

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

2758

Lastpage

2760

Abstract

Structural and magnetic characterizations have been performed on NiFe-FeMn exchange-biased bilayers grown by molecular beam epitaxy. The growth of the films showed high-quality epitaxy with well-defined flat interface between the layers. Magnetic measurements confirmed that the films showed not only a comparable exchange anisotropy field (H_ex) to that of sputtered films but also a lowered threshold thickness of 2 nm at which H_ex vanishes for the FeMn.

Keywords

exchange interactions (electron); iron alloys; magnetic anisotropy; magnetic epitaxial layers; magnetic multilayers; manganese alloys; molecular beam epitaxial growth; nickel alloys; FeMn-NiFe; FeMn-NiFe exchange-biased bilayer; exchange anisotropy field; magnetic characteristics; molecular beam epitaxy; structural characteristics; threshold thickness; Couplings; Epitaxial growth; Magnetic anisotropy; Magnetic fields; Magnetic films; Magnetosphere; Molecular beam epitaxial growth; Perpendicular magnetic anisotropy; Substrates; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802856

Filename

1042345