Magnetic surface anisotropy of fcc-Co-Fe(111)/Pd multilayers

Author

Okamoto, Satoshi ; Kitakami, Osamu ; Shimada, Yutaka

Author_Institution

Res. Inst. for Sci. Meas., Tohoku Univ., Sendai, Japan

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3031

Lastpage

3033

Abstract

We have studied the magnetic surface anisotropy (MSA) of fcc-Co-Fe(111)/Pd multilayers in order to investigate the relationship of the MSA with Co-Fe composition. Multilayers (Co_100-xFe_x dÅ/Pd 50 Å)×5/Pd 200 Å were fabricated by DC sputtering on HF-treated Si(001) substrates. Co-Fe layer thickness d was varied from 3 to 7.5 Å at x=0, 8, and 14 at.%. All the samples showed perpendicular magnetic anisotropy, and the MSA decreased monotonically with Fe content x. This decrease of the MSA would be attributed to decrease of band filling by Co-Fe alloying

Keywords

cobalt alloys; iron alloys; magnetic multilayers; palladium; perpendicular magnetic anisotropy; sputtered coatings; surface magnetism; 200 A; 3 to 7.5 A; 50 A; Co-Fe alloying effects; Co-Fe composition dependence; CoFe-Pd; DC sputtered films; Fe content dependence; HF; HF-treated Si(001) substrate; MSA; Si; band filling; fcc-Co-Fe(111)/Pd multilayers; layer thickness dependence; magnetic surface anisotropy; perpendicular magnetic anisotropy; Anisotropic magnetoresistance; Hafnium; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic multilayers; Magnetization; Perpendicular magnetic anisotropy; Sputtering; Surface treatment;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.801075

Filename

801075