Prediction of NdFe16-based permanent-magnet compounds with high magnetization

Autor: Insung Seo, Shimpei Tanaka, Mitsuru Endo, Yoshihiro Gohda
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Applied Physics Express, Vol 17, Iss 7, p 075502 (2024)
Druh dokumentu: article
ISSN: 1882-0786
DOI: 10.35848/1882-0786/ad5fd9
Popis: We find a candidate for new permanent-magnet materials with the 1–16 stoichiometry on the basis of first-principles calculations utilizing a materials database. An extremely iron-rich NdFe _16 compound shows exceptionally high saturation magnetization with an adequate magnetocrystalline anisotropy energy and Curie temperature. Although it has an excessive formation energy in its binary composition, introducing interstitial light elements into NdFe _16 successfully decreases the formation energy while maintaining its superior magnetic properties. The density of states explains the alteration of magnetization from incorporating light elements.
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