Ferromagnetic Resonance Study of Annealed NiFe/FeMn/CoFe Trilayers

被引：7

作者：

Kim, Ki-Yeon ^{[1
]}

Choi, Hyeok-Cheol ^{[2
]}

Shim, Je-Ho ^{[3
]}

Kim, Dong-Hyun ^{[3
]}

You, Chun-Yeol ^{[2
]}

Lee, Jeong-Soo ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Div Neutron Sci, Taejon 305353, South Korea

[2] Inha Univ, Dept Phys, Inchon 402751, South Korea

[3] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, South Korea

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 06期

关键词：

Exchange bias; ferromagnetic resonance; FM/AFM/FM trilayer; linewidth broadening; resonance field; thermal stability; EXCHANGE; BILAYERS; LAYERS; FILMS;

D O I：

10.1109/TMAG.2009.2020552

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：

The effect of a thermal treatment on the exchange field in 19-nm NiFe(bottom)/15-nm FeMn/19-mn CoFe(top) trilayers has been investigated by employing a vibrating sample magnetometer (VSM) and a ferromagnetic resonance (FMR) spectrometer. FMR spectra as a function of applied dc field reveal that there are two distinct resonance peaks corresponding to each ferromagnetic layer. It is found that exchange fields determined from the in-plane angular dependence of the resonance field are in accord with that determined through the magnetic hysteresis loops for the NiFe/FeMn interface rather than the CoFe/FeMn one. A FMR linewidth broadening as a function of the annealing temperatures is attributed to the interdiffusion between the two magnetic interfaces across a FeMn layer.

引用

页码：2766 / 2769

页数：4

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