Magnetization and magnetic anisotropy in Ni/Pd multilayer films

Author

Jeong, Jong-Ryul ; Kim, Young-Seok ; Shin, Sung-Chul

Author_Institution

Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3805

Lastpage

3807

Abstract

We have investigated magnetization and magnetic anisotropy in Ni/Pd multilayer films, prepared by dc magnetron sputtering at 7 mTorr Ar sputtering pressure. Interestingly, enhanced magnetization was found in this system, due to the polarization of Pd. Delicate in situ stress and ex situ magnetostriction measurements were performed to quantitatively determine the magnetoelastic contribution to the perpendicular magnetic anisotropy in this system. The magnetoelastic anisotropy varied from 2.8×10⁵ to 4.2×10⁵ erg/cm³, which was found to be 50-75% of the maximum anisotropy energy

Keywords

magnetic multilayers; magnetisation; magnetoelastic effects; magnetostriction; metallic superlattices; nickel; palladium; perpendicular magnetic anisotropy; sputtered coatings; DC magnetron sputtering; Ni-Pd; Ni/Pd multilayer films; Pd polarization; magnetic anisotropy; magnetization; magnetoelastic anisotropy; magnetoelastic contribution; magnetostriction; maximum anisotropy energy; perpendicular magnetic anisotropy; Anisotropic magnetoresistance; Argon; Magnetic anisotropy; Magnetic films; Magnetic multilayers; Magnetization; Magnetostriction; Perpendicular magnetic anisotropy; Polarization; Sputtering;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800671

Filename

800671