Abstract
Some results concerning the influence of the composition and thickness of NbCu spacer layer on the microstructure and magnetic properties of multilayer [ NdFeB / ( NbCu ) ] × n films, in view of their utilization for manufacturing the thin film permanent magnets are presented. A comparison between the microstructure and magnetic properties of NdFeB single layer and [ NdFeB / ( NbCu ) ] × n multilayer is also presented. The multilayer [ NdFeB / ( NbCu ) ] × n thin films with the thickness of the NdFeB layer of 180 nm and the thickness of the NbCu spacer layer of 3 nm, exhibit good hard magnetic characteristics such as coercive force H c of about 1510 kA/m and the remanence ratio M r / M s of about 0.8.
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