Microwave magnetic properties of laminates with thin FeCoBSi films

Haipeng Lu; Yongjun Jiang; Jing Yang; Longjiang Deng

doi:10.1007/s11595-011-0325-y

Journal of Wuhan University of Technology Materials Science Edition ›› 2011, Vol. 26 ›› Issue (5) : 857 -860. DOI: 10.1007/s11595-011-0325-y

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Microwave magnetic properties of laminates with thin FeCoBSi films

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Abstract

The microwave permeability of laminated composites based on thin FeCoBSi films was under study. The level of permeability increased with increasing of the ferromagnetic inclusions in the laminates. The intrinsic permeability spectra of ferromagnetic inclusion are parametrically reconstructed. The obtained parameters of magnetic resonance were specially analyzed. To avoid the effect of eddy current and to obtain large-volume fractions of ferromagnetic constituent, laminates consisting of alternating FeCoBSi/SiO₂ multilayers and mylar substrates were also investigated. For the same volume fractions of ferromagnetic constituent (8.7%), laminates based on multi-layered films are found to possess higher values of permeability than those based on one-layered films.

Keywords

microwave permeability / resonance frequency / multi-layer magnetic films

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Haipeng Lu, Yongjun Jiang, Jing Yang, Longjiang Deng. Microwave magnetic properties of laminates with thin FeCoBSi films. Journal of Wuhan University of Technology Materials Science Edition, 2011, 26(5): 857-860 DOI:10.1007/s11595-011-0325-y

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