Soft magnetism and microwave magnetic properties of Fe-Co-Hf films deposited by composition gradient sputtering

Shandong Li; Ming Liu; Feng Xu; J. Lou; Zongjun Tian; Jianpeng Wu; Yi Hu; Xinle Cai; Jenq Gong Duh; Nian X. Sun

doi:10.1063/1.3549584

Soft magnetism and microwave magnetic properties of Fe-Co-Hf films deposited by composition gradient sputtering

Shandong Li
, Ming Liu
, Feng Xu
, J. Lou
, Zongjun Tian
, Jianpeng Wu
, Yi Hu
, Xinle Cai
, Jenq Gong Duh
, Nian X. Sun

Fujian Normal University
Northeastern University
Nanjing University of Science and Technology
Nanjing University of Aeronautics and Astronautics
National Tsing Hua University

科研成果: 期刊稿件 › 文章 › 同行评审

18 引用（Scopus）

摘要

A composition gradient sputtering method was employed to deposit a series of (Fe_xCo_1-x)_1-yHf_y alloy films with different Fe/Co atomic ratios and Hf-doping. At Fe/Co 70/30, the magnetically annealed (Fe_0.7Co_0.3)_1-yHf_y films with y = 0.087-0.124 showed a very high uniaxial anisotropy and an ultrahigh ferromagnetic resonance frequency over 7 GHz after the films were annealed at 350 °C, while at Fe/Co 50/50, the as-deposited (Fe_0.5Co _0.5)_1-yHf_y films with y 0.074-0.168 showed an excellent in-plane uniaxial anisotropy and high ferromagnetic resonance frequency over 3 GHz. These Fe-Co-Hf films deposited by the composition gradient sputtering method exhibited ahigh saturation magnetization of 1.8 - 2.2 T, a large uniaxial anisotropy field of 200 - 500 Oe, and a high ferromagnetic resonance frequency over 7 GHz, which provides great opportunities for integrated magnetic devices.

源语言	英语
文章编号	07A315
期刊	Journal of Applied Physics
卷	109
期	7
DOI	https://doi.org/10.1063/1.3549584
出版状态	已出版 - 1 4月 2011
已对外发布	是

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title = "Soft magnetism and microwave magnetic properties of Fe-Co-Hf films deposited by composition gradient sputtering",

abstract = "A composition gradient sputtering method was employed to deposit a series of (FexCo1-x)1-yHfy alloy films with different Fe/Co atomic ratios and Hf-doping. At Fe/Co 70/30, the magnetically annealed (Fe0.7Co0.3)1-yHfy films with y = 0.087-0.124 showed a very high uniaxial anisotropy and an ultrahigh ferromagnetic resonance frequency over 7 GHz after the films were annealed at 350 °C, while at Fe/Co 50/50, the as-deposited (Fe0.5Co 0.5)1-yHfy films with y 0.074-0.168 showed an excellent in-plane uniaxial anisotropy and high ferromagnetic resonance frequency over 3 GHz. These Fe-Co-Hf films deposited by the composition gradient sputtering method exhibited ahigh saturation magnetization of 1.8 - 2.2 T, a large uniaxial anisotropy field of 200 - 500 Oe, and a high ferromagnetic resonance frequency over 7 GHz, which provides great opportunities for integrated magnetic devices.",

author = "Shandong Li and Ming Liu and Feng Xu and J. Lou and Zongjun Tian and Jianpeng Wu and Yi Hu and Xinle Cai and Duh, \{Jenq Gong\} and Sun, \{Nian X.\}",

year = "2011",

month = apr,

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doi = "10.1063/1.3549584",

language = "英语",

volume = "109",

journal = "Journal of Applied Physics",

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T1 - Soft magnetism and microwave magnetic properties of Fe-Co-Hf films deposited by composition gradient sputtering

AU - Li, Shandong

AU - Liu, Ming

AU - Xu, Feng

AU - Lou, J.

AU - Tian, Zongjun

AU - Wu, Jianpeng

AU - Hu, Yi

AU - Cai, Xinle

AU - Duh, Jenq Gong

AU - Sun, Nian X.

PY - 2011/4/1

Y1 - 2011/4/1

N2 - A composition gradient sputtering method was employed to deposit a series of (FexCo1-x)1-yHfy alloy films with different Fe/Co atomic ratios and Hf-doping. At Fe/Co 70/30, the magnetically annealed (Fe0.7Co0.3)1-yHfy films with y = 0.087-0.124 showed a very high uniaxial anisotropy and an ultrahigh ferromagnetic resonance frequency over 7 GHz after the films were annealed at 350 °C, while at Fe/Co 50/50, the as-deposited (Fe0.5Co 0.5)1-yHfy films with y 0.074-0.168 showed an excellent in-plane uniaxial anisotropy and high ferromagnetic resonance frequency over 3 GHz. These Fe-Co-Hf films deposited by the composition gradient sputtering method exhibited ahigh saturation magnetization of 1.8 - 2.2 T, a large uniaxial anisotropy field of 200 - 500 Oe, and a high ferromagnetic resonance frequency over 7 GHz, which provides great opportunities for integrated magnetic devices.

AB - A composition gradient sputtering method was employed to deposit a series of (FexCo1-x)1-yHfy alloy films with different Fe/Co atomic ratios and Hf-doping. At Fe/Co 70/30, the magnetically annealed (Fe0.7Co0.3)1-yHfy films with y = 0.087-0.124 showed a very high uniaxial anisotropy and an ultrahigh ferromagnetic resonance frequency over 7 GHz after the films were annealed at 350 °C, while at Fe/Co 50/50, the as-deposited (Fe0.5Co 0.5)1-yHfy films with y 0.074-0.168 showed an excellent in-plane uniaxial anisotropy and high ferromagnetic resonance frequency over 3 GHz. These Fe-Co-Hf films deposited by the composition gradient sputtering method exhibited ahigh saturation magnetization of 1.8 - 2.2 T, a large uniaxial anisotropy field of 200 - 500 Oe, and a high ferromagnetic resonance frequency over 7 GHz, which provides great opportunities for integrated magnetic devices.

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DO - 10.1063/1.3549584

M3 - 文章

AN - SCOPUS:79955368641

SN - 0021-8979

VL - 109

JO - Journal of Applied Physics

JF - Journal of Applied Physics

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ER -

Soft magnetism and microwave magnetic properties of Fe-Co-Hf films deposited by composition gradient sputtering

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