Ferromagnetic Resonance in Exchange-Coupled NiFe/FeMn Films and Its Control

被引：5

作者：

Hu, Shaojie ^{[1
,2
]}

Kiseki, Kohei ^{[1
,2
]}

Yakata, Satoshi ^{[1
,3
]}

Kimura, Takashi ^{[1
,3
]}

机构：

[1] Kyushu Univ, INAMORI Frontier Res Ctr, Fukuoka 8190395, Japan

[2] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Fukuoka 8190395, Japan

[3] Japan Sci & Technol Agcy, CREST, Tokyo 1020075, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2012年 / 48卷 / 11期

关键词：

Coercivity enhancement; damping constant; exchange bias; ferromagntic resonance (FMR); ANISOTROPY; FIELD; BIAS;

D O I：

10.1109/TMAG.2012.2201925

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 static and dynamic magnetization properties in an exchange-coupled NiFe/FeMn/Cu trilayer system have been investigated. Although a clear loop shift was observed in the magnetization versus field curve, the magnitude of the exchange bias does not show a systematic dependence on the Cu thickness. On the other hand, from the ferromagnetic resonance measurements, the exchange bias is found to increase with increasing the Cu thickness. This result indicates that the resonant frequency can be controlled by the Cu thickness. The correlation between the coercivity and the damping constant is also discussed.

引用

页码：2889 / 2891

页数：3

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