Title :
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
fDate :
9/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
