SPIN-WAVE RESONANCE IN FEAIN FILMS

被引：8

作者：

ROOK, K ^{[1
]}

ARTMAN, JO ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV,CTR DATA STORAGE SYST,DEPT ELECT & COMP ENGN,PITTSBURGH,PA 15213

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/20.278868

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present results on the 33 GHz ferromagnetic resonance and spin wave resonance spectra of single and multilayer NiFe/FeAlN films deposited by rf diode sputtering. The following films were prepared: FeAlN/glass, NiFe/glass, NiFe/FeAlN/glass and NiFe/FeAlN/NiFe/glass. For all the FeAlN films a spectrum of volume spin waves is observed. The exchange constant, A, calculated from the spin wave resonance spectrum is between 1.6 and 1.8 x 10(-6) erg cm-1. The effective anisotropy field, 4-pi-M(s) and g-values are -17.7 kOe, 18.1 kG, 2.19 and -9.1 kOe, 9.4 kG, 2.14 for the FeAlN and the NiFe respectively. In the bilayer and the trilayer films, we observe an extra resonance which lies at a field value in between the NiFe and FeAlN resonances for in-plane applied field. We attribute this resonance to a surface spin wave mode.

引用

页码：5450 / 5452

页数：3