First-principles study on surface stability and interface magnetic properties of SmFe12
First-principles study on surface stability and interface magnetic properties of SmFe12
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DOI：
10.35848/1882-0786/ab7bca
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发表时间：
2020-04-01
影响因子：
2.3
通讯作者：
Gohda, Yoshihiro
中科院分区：
文献类型：
--
作者：
Ainai, Yuta;Shiozawa, Tomoharu;Gohda, Yoshihiro
我们报道了SmFe_（12）的最稳定表面和SmCu和bcc Fe亚相的SmFe_（12）界面磁性。我们发现Sm暴露量最高的（110）面是SmFe 12最稳定的表面。通过稀土的暴露的稳定也被证实为Nd_2Fe_（14）B。此外，我们还表明，SmCu不仅提高磁矩和晶粒表面的各向异性的SmFe 12，但也很好地抑制SmFe 12晶粒之间的磁相互作用。
We report the most stable surface of SmFe12 and the interface magnetic properties of SmFe12 with SmCu and bcc Fe as subphases. We find that the (110) surface with the highest exposition of Sm is the most stable surface of SmFe12. Stabilization by the exposition of rare-earth is also confirmed for Nd2Fe14B. Moreover, we also demonstrate that SmCu improves not only magnetic moments and the anisotropy of grain surfaces of SmFe12 but also well suppresses the magnetic interaction between SmFe12 grains.