Magneto-Optical Properties of PtCu/Co Multilayers

Autor: Liang-yao Chen, Jinchang Chen, Jian Li, Wu Zheng, Ping-ping Ma, Yin-jun Wang, Ailing Wang
Rok vydání: 1998
Předmět:
Zdroj: Chinese Physics Letters. 15:376-378
ISSN: 1741-3540
0256-307X
DOI: 10.1088/0256-307x/15/5/024
Popis: The effect of Cu doping in Pt spacer layers on the magneto-optical properties of sputtered Pt/Co multilayers has been investigated. It was found that the polar Kerr rotation θk, ellipticity k, refractive index n and absorptive index k show an oscillation behavior as a function of the Cu content x, reflective index R keeps almost constant with the decreasing wavelength λ, three θk peaks appear at x = 0.03, 0.12, 0.25, respectively. Values of conductivity tensor σ1xx, σ2xx, σ1xy, and σ2xy in the PtCu layers have been derived from experimental θk, k, n, and k values at wavelength 770 nm. The oscillation of the polar Kerr rotation θk may be resulted from spin polarized quantum size effects in the PtCu layers.
Databáze: OpenAIRE