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microwave permeability of single cobalt nanotube studied by micromagnetics simulations and generalized Snoek's law

Science China(Technological Sciences) 2014年第2期57卷 254-258页

作者： HAN ManGui GUO Wei DENG LongJiang State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China

microwave permeability spectra of single Co nanotube under equilibrium state have been studied by micromagnetics *** than four obvious resonance peaks have been found(11.72,24.20,33.18 and 39.55 GHz).Such large resonance frequency cannot be found in other traditional magnetic *** configurations of magnetic moments along the nanotube have been *** results show that the top end of nanotube has a"flow-out"pattern of magnetic moments *** bottom end has a"flow-in"pattern of magnetic moments *** magnetic moments within the main body of nanotube are aligned perfectly along the length of *** magnitude of natural resonance peak is strongly related to the volume fraction of a zone,which has the same orientation of magnetic *** microwave permeability values have been found for single *** generalized Snoek’s law has been used to validate the micromagnetics simulations in this paper.

关键词： micromagnetics simulation microwave permeability cobalt nanotube Snoek's law

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microwave Magnetic Properties of Laminates with Thin FeCoBSi Films

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Journal of Wuhan University of Technology(Materials Science) 2011年第5期26卷 857-860页

作者：陆海鹏 State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China

The microwave permeability of laminated composites based on thin FeCoBSi films was under *** level of permeability increased with increasing of the ferromagnetic inclusions in the *** intrinsic permeability spectra of ferromagnetic inclusion are parametrically *** obtained parameters of magnetic resonance were specially *** avoid the effect of eddy current and to obtain large-volume fractions of ferromagnetic constituent,laminates consisting of alternating FeCoBSi/SiO2 multi-layers and mylar substrates were also *** 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.

关键词： microwave permeability resonance frequency multi-layer magnetic films

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