Elastic and magnetic properties of Co/Cu multilayers studied by Brillouin spectroscopy

被引：16

作者：

Carlotti, G ^{[1
]}

Gubbiotti, G ^{[1
]}

Pareti, L ^{[1
]}

Socino, G ^{[1
]}

Turilli, G ^{[1
]}

机构：

[1] CNR,IST MASPEC,I-43100 PARMA,ITALY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 165卷 / 1-3期

关键词：

multilayers; -; metallic; Brillouin scattering; elastic constant; magnetization; saturation;

D O I：

10.1016/S0304-8853(96)00576-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Brillouin light scattering technique has been used to investigate the elastic and magnetic properties of periodic Co/Cu multilayers deposited by rf sputtering on sapphire substrates. Using measurements of the phase velocity of the Rayleigh surface acoustic wave in p-p Brillouin spectra, we have evaluated the effective elastic constant c(44). The values obtained for multilayer periods larger than 2 nm are in good agreement with those calculated from the elastic constants of the bulk materials. For lower periods (0.6 and 1.2 nm) the measured elastic constants exhibit marked decreases caused by interface disorder. Concerning the magnetic properties, in the case of high-period specimens, the detection of both surface and bulk spin waves in the p-s spectra has allowed us to determine the magnetic parameters of the multilayers.

引用

页码：424 / 427

页数：4

共 14 条

[1] MAGNETIC EXCITATIONS IN LAYERED MEDIA - SPIN-WAVES AND THE LIGHT-SCATTERING SPECTRUM [J].