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Title= 3)
Publication TypeJournal Article
Year of Publication2016
AuthorsBalasubramanian, B, Das, B, Nguyen, MC, Xu, XS, Zhang, J, Zhang, XZ, Liu, YH, Huq, A, Valloppilly, SR, Jin, YL, Wang, CZ, Ho, KM, Sellmyer, DJ
JournalApl Materials
Date Published11
Type of ArticleArticle
ISBN Number2166-532X
Accession NumberWOS:000390228300011
Keywordsaugmented-wave method, Materials Science, permanent-magnets, physics, Technology - Other Topics

We report the fabrication of a set of new rare-earth-free magnetic compounds, which form the Fe3Co3Ti2-type hexagonal structure with P-6m2 symmetry. Neutron powder diffraction shows a significant Fe/Co anti-site mixing in the Fe3Co3Ti2 structure, which has a strong effect on the magnetocrystalline anisotropy as revealed by first-principle calculations. Increasing substitution of Fe atoms for Coin the Fe3Co3Ti2 lattice leads to the formation of Fe4Co2Ti2, Fe5CoTi, and Fe6Ti2 with significantly improved permanent-magnet properties. A high magnetic anisotropy (13.0 Mergs/cm(3)) and saturation magnetic polarization (11.4 kG) are achieved at 10 K by altering the atomic arrangements and decreasing Fe/Co occupancy disorder. (C) 2016 Author(s).

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Alternate JournalAPL Mater.