- Tytuł:
- Influence of Additions and Stratification on the Magnetic Properties and Out-of-Plane Texture of Nd-Fe-B Films
- Autorzy:
-
Grigoras, M.
Lupu, N.
Chiriac, H.
Borza, F.
Urse, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1368477.pdf
- Data publikacji:
- 2014-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.30.Gw
75.50.Cc
75.50.Vv
75.70.Ak
75.70.Cn - Opis:
- 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.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 1; 220-221
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł