Article ID Journal Published Year Pages File Type
1802441 Journal of Magnetism and Magnetic Materials 2007 5 Pages PDF
Abstract

Highly oriented films of ∼6 μm in thickness consisting of the Nd2Fe14B compound phase were obtained by a three-dimensional sputtering method at room temperature and the subsequent crystallization by annealing. The c-axis orientation and coercivity of film samples were sensitive to the sputtering parameters and annealing conditions. The optimum temperature and time for annealing were 650 °C and 30 min to show the highest coercivity without any deterioration for the orientation of Nd2Fe14B grains, and furthermore the degree of c-axis orientation was increased by decreasing the Ar gas pressure or input power for sputtering. The resultant film magnets with good magnetic properties of Br=∼1.06 T, HC=∼371 kA/m, and (BH)max=∼160 kJ/m3 were obtained under the optimized parameters for sputtering.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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