The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films

Yan Liu; R. V. Ramanujan; Z. W. Liu; C. Y. Tan; Xing Zhao; Erjia Liu; C. K. Ong

doi:10.1007/s00339-010-5700-6

The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films

Yan Liu, R. V. Ramanujan, Z. W. Liu, C. Y. Tan, Xing Zhao, Erjia Liu, C. K. Ong

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

4 Citations (Scopus)

Abstract

The effect of a variation in Si and N concentration on the microstructure, crystal structure and high-frequency magnetic properties of Fe-Co-Si-N nanogranular thin films was investigated. The films, prepared by rf magnetron sputtering, consisted of nanosized grains of FeCo as well as a Si and N rich intergranular amorphous phase. The Si concentration had a significant effect on the crystal structure of the FeCo phase. The resistivities of the Fe-Co-Si-N films were significantly enhanced by an increase in Si concentration. The resonant frequency of the Fe-Co-Si-N films could be tuned from 0.45 GHz to 2.1 GHz by controlling Si concentration. The N concentration greatly influenced magnetic properties and the variation in resonant frequency is in agreement with Kittel's equation.

Original language	English
Pages (from-to)	257-263
Number of pages	7
Journal	Applied Physics A: Materials Science and Processing
Volume	100
Issue number	1
DOIs	https://doi.org/10.1007/s00339-010-5700-6
Publication status	Published - Jul 2010
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Materials Science

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title = "The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films",

abstract = "The effect of a variation in Si and N concentration on the microstructure, crystal structure and high-frequency magnetic properties of Fe-Co-Si-N nanogranular thin films was investigated. The films, prepared by rf magnetron sputtering, consisted of nanosized grains of FeCo as well as a Si and N rich intergranular amorphous phase. The Si concentration had a significant effect on the crystal structure of the FeCo phase. The resistivities of the Fe-Co-Si-N films were significantly enhanced by an increase in Si concentration. The resonant frequency of the Fe-Co-Si-N films could be tuned from 0.45 GHz to 2.1 GHz by controlling Si concentration. The N concentration greatly influenced magnetic properties and the variation in resonant frequency is in agreement with Kittel's equation.",

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T1 - The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films

AU - Liu, Yan

AU - Ramanujan, R. V.

AU - Liu, Z. W.

AU - Tan, C. Y.

AU - Zhao, Xing

AU - Liu, Erjia

AU - Ong, C. K.

PY - 2010/7

Y1 - 2010/7

N2 - The effect of a variation in Si and N concentration on the microstructure, crystal structure and high-frequency magnetic properties of Fe-Co-Si-N nanogranular thin films was investigated. The films, prepared by rf magnetron sputtering, consisted of nanosized grains of FeCo as well as a Si and N rich intergranular amorphous phase. The Si concentration had a significant effect on the crystal structure of the FeCo phase. The resistivities of the Fe-Co-Si-N films were significantly enhanced by an increase in Si concentration. The resonant frequency of the Fe-Co-Si-N films could be tuned from 0.45 GHz to 2.1 GHz by controlling Si concentration. The N concentration greatly influenced magnetic properties and the variation in resonant frequency is in agreement with Kittel's equation.

AB - The effect of a variation in Si and N concentration on the microstructure, crystal structure and high-frequency magnetic properties of Fe-Co-Si-N nanogranular thin films was investigated. The films, prepared by rf magnetron sputtering, consisted of nanosized grains of FeCo as well as a Si and N rich intergranular amorphous phase. The Si concentration had a significant effect on the crystal structure of the FeCo phase. The resistivities of the Fe-Co-Si-N films were significantly enhanced by an increase in Si concentration. The resonant frequency of the Fe-Co-Si-N films could be tuned from 0.45 GHz to 2.1 GHz by controlling Si concentration. The N concentration greatly influenced magnetic properties and the variation in resonant frequency is in agreement with Kittel's equation.

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The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films

Abstract

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