Tunable zero-field ferromagnetic resonance frequency from S to X band in oblique deposited CoFeB thin films

被引：50

作者：

Li, Chengyi ^{[1
]}

Chai, Guozhi ^{[1
]}

Yang, Chengcheng ^{[1
]}

Wang, Wenfeng ^{[1
]}

Xue, Desheng ^{[1
]}

机构：

[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

基金：

中国国家自然科学基金;

关键词：

MAGNETIC-ANISOTROPY; UNIAXIAL ANISOTROPY; PERMEABILITY; DEPENDENCE;

D O I：

10.1038/srep17023

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Tunable zero-field ferromagnetic resonance frequency in wide range is very useful for the application of microwave devices. We performed an investigation of the static and high frequency magnetic properties for oblique sputtered CoFeB thin films. The static magnetic results revealed that oblique sputtered CoFeB thin films possess well defined in-plane uniaxial magnetic anisotropy, which increases monotonically from 50.1 to 608.8 Oe with the increasing of deposition angle from 10 degrees to 70 degrees. Continuous modification of the resonance frequency of CoFeB thin films in a range of 2.83-9.71 GHz (covers three microwave bands including S, C and X bands) has been achieved. This behavior can be explained as the result of the microstructure due to the self-shadowing effect mainly. These CoFeB thin films with tunable magnetic properties may be good candidates for usage in microwave devices.

引用

页数：7

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