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Title: The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films
Authors: Liu, Y. 
Ramanujan, R.V.
Liu, Z.W. 
Tan, C.Y. 
Zhao, X.
Liu, E.
Ong, C.K. 
Issue Date: Jul-2010
Source: Liu, Y., Ramanujan, R.V., Liu, Z.W., Tan, C.Y., Zhao, X., Liu, E., Ong, C.K. (2010-07). The high frequency magnetic properties of self assembled Fe-Co-Si-N nanogranular thin films. Applied Physics A: Materials Science and Processing 100 (1) : 257-263. ScholarBank@NUS Repository.
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. © 2010 Springer-Verlag.
Source Title: Applied Physics A: Materials Science and Processing
ISSN: 09478396
DOI: 10.1007/s00339-010-5700-6
Appears in Collections:Staff Publications

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