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First-principles study on surface stability and interface magnetic properties of SmFe12

Yuta Ainai, Tomoharu Shiozawa, Yasutomi Tatetsu, Yoshihiro GOHDA
2020 Applied Physics Express  

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We report the most stable surface of SmFe 12 and the interface magnetic properties of SmFe 12 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 SmFe 12 . Stabilization by the exposition of rare-earth is also confirmed for Nd 2 Fe 14 B. Moreover, we also demonstrate that SmCu improves not only magnetic moments and the anisotropy of grain surfaces of SmFe 12 but also well suppresses the magnetic interaction between SmFe 12 grains.
doi:10.35848/1882-0786/ab7bca fatcat:adhwke4osngyfdpgmcjqxlqoje
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Yuta Ainai, Tomoharu Shiozawa, Yasutomi Tatetsu, Yoshihiro GOHDA. "First-principles study on surface stability and interface magnetic properties of SmFe12." Applied Physics Express 13.4 (2020)