Abstract
Abstract Effects of the buffer layer temperature ( T b ) on the magnetic properties and microstructure of [Mo/NdFeB/Mo]-type thin films have been investigated. The Mo-buffer layer with low T b is composed of fine grains while that with high T b has coarse grains. The subsequent NdFeB layer also grows with fine or coarse grains following the buffer layer structure. The NdFeB layer grown on a low T b buffer shows high coercivity and strong perpendicular anisotropy. The best magnetic properties of i H c =1.01 MA/m (12.7 kOe), B r =1.31 T (13.1 kG) and BH max =329 kJ/m 3 (41.4 MGOe) were obtained from the film with T b =400°C.
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