Angular tunable zero-field ferromagnetic resonance frequency in oblique sputtered CoFeBSm thin films

被引：21

作者：

Chai, Guozhi ^{[1
,2
]}

Phuoc, Nguyen N. ^{[1
]}

Ong, Chong Kim ^{[3
]}

机构：

[1] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore

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

[3] Natl Univ Singapore, Ctr Superconducting & Magnet Mat, Dept Phys, Singapore 117542, Singapore

来源：

APPLIED PHYSICS EXPRESS | 2014年 / 7卷 / 06期

基金：

中国国家自然科学基金;

关键词：

ANISOTROPY;

D O I：

10.7567/APEX.7.063001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the high-frequency magnetic properties of oblique-sputtered CoFeBSm thin films. We found that the zero-field ferromagnetic resonance frequency f(r) can be tuned from 3.8 to 6.4 GHz by rotating the samples within the plane. The angular tunable f(r) is tentatively explained with the competition of uniaxial anisotropy (arising from the oblique deposition) the rotatable anisotropy (originating from the rotatable stripe domain). These results may have great implications for tunable microwave magnetic devices. (C) 2014 The Japan Society of Applied Physics

引用

页数：4

共 19 条

[1] Optimizing high-frequency properties of stripe domain ferrite doped CoFe thin films by means of a Ta buffer layer [J].

Chai, Guozhi ;

Phuoc, Nguyen N. ;

Ong, C. K. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2013, 46 (41)

[2] High thermal stability of zero-field ferromagnetic resonance above 5 GHz in ferrite-doped CoFe thin films [J].

Chai, Guozhi ;

Phuoc, Nguyen N. ;

Ong, C. K. .

APPLIED PHYSICS LETTERS, 2013, 103 (04)

[3] Exchange coupling driven omnidirectional rotatable anisotropy in ferrite doped CoFe thin film [J].

Chai, Guozhi ;

Phuoc, Nguyen N. ;

Ong, C. K. .

SCIENTIFIC REPORTS, 2012, 2

[4] Adjustable Microwave Properties in FeCoZr/Cu Multilayers [J].

Chai, Guozhi ;

Wang, Zhiling ;

Wang, Gaoxue ;

Sui, Wenbo ;

Xue, Desheng .

IEEE TRANSACTIONS ON MAGNETICS, 2011, 47 (10) :3115-3117

[5] Adjust the resonance frequency of (Co90Nb10/Ta)n multilayers from 1.4 to 6.5 GHz by controlling the thickness of Ta interlayers [J].

Chai, Guozhi ;

Yang, Yuancai ;

Zhu, Jingyi ;

Lin, Min ;

Sui, Wenbo ;

Guo, Dangwei ;

Li, Xiling ;

Xue, Desheng .

APPLIED PHYSICS LETTERS, 2010, 96 (01)

[6] Induced anisotropy in soft magnetic Fe65Co35/Co thin films [J].

Fu, Y. ;

Yang, Z. ;

Miyao, T. ;

Matsumoto, M. ;

Liu, Xx ;

Morisako, A. .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 133 (1-3) :61-65

[7] A phenomenological theory of damping in ferromagnetic materials [J].

Gilbert, TL .

IEEE TRANSACTIONS ON MAGNETICS, 2004, 40 (06) :3443-3449

[8] INTERPRETATION OF ANOMALOUS LARMOR FREQUENCIES IN FERROMAGNETIC RESONANCE EXPERIMENT [J].

KITTEL, C .

PHYSICAL REVIEW, 1947, 71 (04) :270-271

[9] Temperature dependence dynamical permeability characterization of magnetic thin film using near-field microwave microscopy [J].

Le Thanh Hung ;

Phuoc, Nguyen N. ;

Wang, Xuan-Cong ;

Ong, C. K. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2011, 82 (08)

[10] Study on the in-plane uniaxial anisotropy of high permeability granular films [J].

Li, WD ;

Kitakami, O ;

Shimada, Y .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) :6661-6663

← 1 2 →