Search results

Sort By:

Limit search:

Influence of Additions and Stratification on the Magnetic Properties and Out-of-Plane Texture of Nd-Fe-B Films

100%

Grigoras M., Lupu N., Chiriac H., Borza F., Urse M.

Acta Physica Polonica A

2014

vol. 126

issue 1

220-221

Nd-Fe-B films with Ta and Mo additions used as buffer and capping layers and as interlayers have been deposited by r.f. sputtering on heated Si(111) substrates at 370°C and 470°C, and subsequently annealed at temperatures between 550°C and 650°C. In comparison with the Ta/NdFeB/Ta film, the Mo/NdFeB/Mo film deposited at 470°C presents an obvious anisotropic character. Very good anisotropic magnetic properties were obtained for Mo/[NdFeB(180)/Mo(5)]×3/Mo multilayer film deposited at 470°C and then annealed at 550°C. This sample exhibits an increase in coercivity from 1225 kA/m up to 1651.8 kA/m, increase in M_{r}/M_{s} ratio from 0.90 up to 0.99, and increase in the maximum energy product from 60.4 to 121.6 kJ/m^{3} as compared to the as-deposited Mo/NdFeB/Mo film. The results demonstrate that after annealing at 550°C the Mo film is more effective for nucleation of Nd_{2}Fe_{14}B hard magnetic grains with c-axis perpendicular to the film plane, especially in multilayer variant.

Refine search results

1 Acta Physica Polonica A

1 2014

1 Borza F.

1 Chiriac H.

1 Grigoras M.

1 Lupu N.

1 Urse M.

Search results

Influence of Additions and Stratification on the Magnetic Properties and Out-of-Plane Texture of Nd-Fe-B Films