The influence of grain morphology and easy axis orientation on the coercivity of Sm(Co0.9Cu0.1)5 thin films
Source abstract
Abstract
Abstract Sm(Co 0.9 Cu 0.1 ) 5 single-layer thin films and Sm(Co 0.9 Cu 0.1 ) 5 /Fe 2 Co exchange coupled bilayer films with c-axis in the plane (IP) and out of the plane (OOP) orientations were prepared on MgO and Al 2 O 3 single crystalline substrates by magnetron sputtering. Clear relationship between the grain morphology and coercivity was observed for the Sm(Co 0.9 Cu 0.1 ) 5 single-layer films. We found the thermal stability of coercivity is largely influenced by the c-axis orientation because the c-axis IP geometry lowers magnetostatic effect that plays an increasing role at elevated temperature. In Sm(Co 0.9 Cu 0.1 ) 5 /Fe 2 Co bilayer films with the two c-axis geometries, the coercivity show larger dependence on the thickness of the Fe 2 Co layer for the c-axis IP geometry due to the energetically unfavorable magnetostatic coupling between hard/soft-magnetic layers, which is supported by micromagnetic simulations.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties of Alloys · Magnetic properties of thin films · Magnetic Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Strategy for high-coercivity Nd–Fe–B magnets10.1016/j.scriptamat.2012.06.038 ↗
2. High-coercivity ultrafine-grained anisotropic Nd–Fe–B magnets processed by hot deformation and the Nd–Cu grain boundary diffusion process10.1016/j.actamat.2013.07.049 ↗
3. Low temperature diffusion process using rare earth-Cu eutectic alloys for hot-deformed Nd-Fe-B bulk magnets10.1063/1.4869062 ↗
4. High-coercivity hot-deformed Nd–Fe–B permanent magnets processed by Nd–Cu eutectic diffusion under expansion constraint10.1016/j.scriptamat.2014.03.002 ↗
5. Microstructure and temperature dependent of coercivity of hot-deformed Nd–Fe–B magnets diffusion processed with Pr–Cu alloy10.1016/j.actamat.2015.08.013 ↗
6. Effect of Nd content on the microstructure and coercivity of hot-deformed Nd–Fe–B permanent magnets10.1016/j.actamat.2013.05.027 ↗
7. Microstructure optimization to achieve high coercivity in anisotropic Nd–Fe–B thin films10.1016/j.actamat.2011.09.006 ↗
8. Grain size dependence of coercivity of hot-deformed Nd–Fe–B anisotropic magnets10.1016/j.actamat.2014.09.021 ↗
9. Saturation magnetization and anisotropy fields in the Sm(Co1-xCux)5 phases10.1063/1.355423 ↗
10. RETM5 and RE2TM17 permanent magnets development10.1063/1.341084 ↗
11. A general approach to the epitaxial growth of rare-earth-transition-metal films10.1063/1.117663 ↗
12. Mechanism of coercivity in epitaxial SmCo5 thin films10.1103/PhysRevB.77.104443 ↗
13. Epitaxial SmCo5 thin films with perpendicular anisotropy
14. The Exchange-Spring Magnet: A New Material Principle for Permanent Magnets10.1109/20.102931 ↗
15. Giant energy product in nanostructured two-phase magnets10.1103/PhysRevB.48.15812 ↗
16. Predicting the Future of Permanent-Magnet Materials10.1109/TMAG.2013.2248139 ↗
17. Nanomagnetics
18. Micromagnetic localization10.1063/1.367846 ↗
19. Rational design of the exchange-spring permanent magnet10.1088/0953-8984/26/6/064214 ↗
20. Largely enhanced energy density in epitaxial SmCo5/Fe/SmCo5 exchange spring trilayers10.1063/1.3596756 ↗
21. Fully Epitaxial, Exchange Coupled SmCo5/Fe Multilayers With Energy Densities above 400 kJ/m3, IEEE10.1109/TMAG.2012.2195646 ↗
22. Sm(Co,Cu)5/Fe exchange spring multilayer films with high energy product10.1063/1.1889238 ↗
23. Microstructures and coercivities of SmCox and Sm(Co,Cu)5 films prepared by magnetron sputtering10.1016/j.jmmm.2006.07.017 ↗
24. Saturation magnetization and anisotropy fields in the Sm(Co1-xCux)5 phases10.1063/1.355423 ↗
25. Micromagnetic simulation of magnetizability of nanocomposite Nd–Fe–B magnets10.1063/1.367666 ↗
26. Polycrystalline Sm(Co,Cu)5 films with perpendicular anisotropy grown on (0 0 0 2) Ru(Cr)10.1088/0022-3727/41/23/232002 ↗
27. L10-ordered FePtAg–C granular thin film for thermally assisted magnetic recording media (invited)
28. Virtues and weaknesses of the domain concept10.1103/RevModPhys.17.15 ↗
29. Angular dependence of the coercive field in sintered Fe77Nd15B8 magnets10.1016/0304-8853(87)90111-9 ↗
30. Oscillations in exchange coupling and magnetoresistance in metallic superlattice structures: Co/Ru, Co/Cr, and Fe/Cr10.1103/PhysRevLett.64.2304 ↗
31. Theory of interlayer magnetic coupling10.1103/PhysRevB.52.411 ↗
32. Large anomalous enhancement of perpendicular exchange bias by introduction of a nonmagnetic spacer between the ferromagnetic and antiferromagnetic layers10.1063/1.1619562 ↗
33. On the exchange biasing through a nonmagnetic spacer layer10.1063/1.373248 ↗
34. Preparation, Characterization, and Modeling of Ultrahigh Coercivity Sm-Co Thin Films10.1002/aelm.201500009 ↗
35. Hard magnetic properties of spacer-layer-tuned NdFeB/Ta/Fe nanocomposite films10.1016/j.actamat.2014.10.008 ↗
36. Nd2Fe14B/FeCo anisotropic nanocomposite films with a large maximum energy product10.1002/adma.201202328 ↗