Electric-Field-Induced Amplitude Tuning of Ferromagnetic Resonance Peak in Nano-granular Film FeCoB-SiO2/PMN-PT Composites

被引：3
|
作者：
Luo, Mei [1 ,2 ]
Zhou, Peiheng [1 ,2 ]
Liu, Yunfeng [1 ,2 ]
Wang, Xin [1 ,2 ]
Xie, Jianliang [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Engn Res Ctr Electromagnet Radiat Control, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
来源：
NANOSCALE RESEARCH LETTERS | 2016年 / 11卷
基金：
中国国家自然科学基金;
关键词：
Magnetoelectric effect; Nano-granular films; Ferromagnetic resonance; Magnetic anisotropy; MAGNETIC-PROPERTIES; SIZE;
D O I：
10.1186/s11671-016-1717-x
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
One of the challenges in the design of microwave absorbers lies in tunable amplitude of dynamic permeability. In this work, we demonstrate that electric-field-induced magnetoelastic anisotropy in nano-granular film FeCoB-SiO2/PMN-PT (011) composites can be used to tune the amplitude of ferromagnetic resonance peak at room temperature. The FeCoB magnetic particles are separated from each other by SiO2 insulating matrix and present slightly different in-plane anisotropy fields. As a result, multi-resonances appear in the imaginary permeability (mu '') curve and mixed together to form a broadband absorption peak. The amplitude of the resonance peak could be modulated by external electric field from 118 to 266.
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页数：5
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