Ultrasoft magnetic properties of Co-Fe-Hf-O nanocomposite films

N. D. Ha; M. H. Phan; L. A. Tuan; T. L. Phan; C. G. Kim; C. O. Kim; S. C. Yu

doi:10.1002/pssa.200777173

Ultrasoft magnetic properties of Co-Fe-Hf-O nanocomposite films

N. D. Ha
, M. H. Phan
, L. A. Tuan
, T. L. Phan
, C. G. Kim
, C. O. Kim
, S. C. Yu

Department of Physics and Chemistry

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

This paper reports on the excellent high-frequency magnetic performance of Co-Fe-Hf-O thin films, which were deposited on Si(100) substrates by the oxygen reactive rf-sputtering method. It was shown that the films possessed not only high electrical resistivity but also large saturation magnetization and hard-axis anisotropy field. Among the compositions investigated, Co _19.35Fe _53.28Hf _7.92O _19.35 exhibited the ultrasoft magnetic properties of high saturation magnetization, 4πM _S-19.86 kG, and low coercivity, H _c-1.5 Oe. The magnetic permeability remained almost constant up to 3 GHz and reached a maximum at the ferromagnetic resonant frequency of 4.024 GHz. These properties of this film together with a high electrical resistivity of 3569 μΩcm make it ideal for producing micromagnetic devices for high-frequency applications.

Original language	English
Pages (from-to)	4125-4128
Number of pages	4
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	204
Issue number	12
DOIs	https://doi.org/10.1002/pssa.200777173
State	Published - Dec 2007

Access to Document

10.1002/pssa.200777173

Cite this

@article{288cc02c211a4f2fb29e12b710c66c67,

title = "Ultrasoft magnetic properties of Co-Fe-Hf-O nanocomposite films",

abstract = "This paper reports on the excellent high-frequency magnetic performance of Co-Fe-Hf-O thin films, which were deposited on Si(100) substrates by the oxygen reactive rf-sputtering method. It was shown that the films possessed not only high electrical resistivity but also large saturation magnetization and hard-axis anisotropy field. Among the compositions investigated, Co 19.35Fe 53.28Hf 7.92O 19.35 exhibited the ultrasoft magnetic properties of high saturation magnetization, 4πM S-19.86 kG, and low coercivity, H c-1.5 Oe. The magnetic permeability remained almost constant up to 3 GHz and reached a maximum at the ferromagnetic resonant frequency of 4.024 GHz. These properties of this film together with a high electrical resistivity of 3569 μΩcm make it ideal for producing micromagnetic devices for high-frequency applications.",

author = "Ha, \{N. D.\} and Phan, \{M. H.\} and Tuan, \{L. A.\} and Phan, \{T. L.\} and Kim, \{C. G.\} and Kim, \{C. O.\} and Yu, \{S. C.\}",

year = "2007",

month = dec,

doi = "10.1002/pssa.200777173",

language = "English",

volume = "204",

pages = "4125--4128",

journal = "Physica Status Solidi (A) Applications and Materials Science",

issn = "1862-6300",

publisher = "Wiley-VCH Verlag",

number = "12",

}

TY - JOUR

T1 - Ultrasoft magnetic properties of Co-Fe-Hf-O nanocomposite films

AU - Ha, N. D.

AU - Phan, M. H.

AU - Tuan, L. A.

AU - Phan, T. L.

AU - Kim, C. G.

AU - Kim, C. O.

AU - Yu, S. C.

PY - 2007/12

Y1 - 2007/12

N2 - This paper reports on the excellent high-frequency magnetic performance of Co-Fe-Hf-O thin films, which were deposited on Si(100) substrates by the oxygen reactive rf-sputtering method. It was shown that the films possessed not only high electrical resistivity but also large saturation magnetization and hard-axis anisotropy field. Among the compositions investigated, Co 19.35Fe 53.28Hf 7.92O 19.35 exhibited the ultrasoft magnetic properties of high saturation magnetization, 4πM S-19.86 kG, and low coercivity, H c-1.5 Oe. The magnetic permeability remained almost constant up to 3 GHz and reached a maximum at the ferromagnetic resonant frequency of 4.024 GHz. These properties of this film together with a high electrical resistivity of 3569 μΩcm make it ideal for producing micromagnetic devices for high-frequency applications.

AB - This paper reports on the excellent high-frequency magnetic performance of Co-Fe-Hf-O thin films, which were deposited on Si(100) substrates by the oxygen reactive rf-sputtering method. It was shown that the films possessed not only high electrical resistivity but also large saturation magnetization and hard-axis anisotropy field. Among the compositions investigated, Co 19.35Fe 53.28Hf 7.92O 19.35 exhibited the ultrasoft magnetic properties of high saturation magnetization, 4πM S-19.86 kG, and low coercivity, H c-1.5 Oe. The magnetic permeability remained almost constant up to 3 GHz and reached a maximum at the ferromagnetic resonant frequency of 4.024 GHz. These properties of this film together with a high electrical resistivity of 3569 μΩcm make it ideal for producing micromagnetic devices for high-frequency applications.

UR - https://www.scopus.com/pages/publications/38049110909

U2 - 10.1002/pssa.200777173

DO - 10.1002/pssa.200777173

M3 - Article

AN - SCOPUS:38049110909

SN - 1862-6300

VL - 204

SP - 4125

EP - 4128

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 12

ER -

Ultrasoft magnetic properties of Co-Fe-Hf-O nanocomposite films

Abstract

Access to Document

Other files and links

Fingerprint

Cite this