Ultra-high ferromagnetic resonance frequency in exchange-biased system

被引：33
|
作者：
Phuoc, Nguyen Nguyen [1 ]
Hung, Le Thanh [2 ]
Ong, C. K. [2 ]
机构：
[1] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore
[2] Natl Univ Singapore, Dept Phys, Ctr Superconducting & Magnet Mat, Singapore 117542, Singapore
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 506卷 / 02期
关键词：
Dynamic permeability; Exchange bias; Rotatable anisotropy; MICROWAVE APPLICATIONS; FILMS; MULTILAYERS;
D O I：
10.1016/j.jallcom.2010.07.064
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Static and dynamic magnetic properties of exchange-biased FeCo/MnIr multilayers were systematically investigated. A huge increased ferromagnetic resonance frequency up to 10 GHz was observed in the case of thin MnIr layers being possibly interpreted as the contribution of the rotatable anisotropy. The rotatable anisotropy as well as the resonance frequency and frequency linewidth can be tuned by changing the thickness of MnIr layer. The correlation between the variation of rotatable anisotropy and enhancement of coercivity and magnetic damping is discussed. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：504 / 507
页数：4
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